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  • Articles  (3,701)
  • Springer  (3,701)
  • 1985-1989  (2,437)
  • 1980-1984  (1,264)
  • 1988  (2,437)
  • 1980  (1,264)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (3,701)
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  • Articles  (3,701)
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  • 1985-1989  (2,437)
  • 1980-1984  (1,264)
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  • 1
    Electronic Resource
    Electronic Resource
    Einfluß des Rehwildes(Capreolus capreolus) auf zwei verschiedene Waldbestände in Abhängigkeit von seiner Populationsdichte (1988)
    Springer
    European journal of wildlife research 34 (1988), S. 232-241 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary To evaluate the feeding pressure exerted by roe deer(Capreolus capreolus), on vegetation, the biomass within reach of feeding animals was measured in the Chizé forest (Deux Sèvres, France) in 2 types of woodland (oak and beech), and for 2 levels of population density: a high density of 20 animals/100 hectares (inside a fenced reserve) and a low density of 5 animals/100 hectares (outside the reserve). The biomass of vegetation was sampled 3 times (spring, end of summer, winter) using the same procedure each time. In the oakwood, total biomass was greater in areas of low density population than in areas with high density. In the beechwood, there was no significant difference in total biomass according to population density. In all cases, the maximum total biomass was observed in the spring sampling. Some differences were noted in the composition of the vegetation between the area inside the game reserve and the area outside the reserve.Hedera helix was very abundant outside the reserve andRuscus aculeatus and mosses were more frequent in the reserve. The feeding impact of roe deer on vegetation determines a change in the floral equilibrium permitting an increase in the abundance of plants not eaten by roe deer and causing a decrease of plants favoured by the deer.
    Abstract: Résumé Dans le but d'évaluer l'impact du chevreuil sur la végétation, la biomasse accessible à ces animaux a été évaluée dans 2 types d'association végétale (une chênaie et une hêtraie) pour 2 niveaux de densité de population dans la forêt domaniale de Chizé (Deux Sèvres, France): forte densité (20 animaux pour 100 hectares) dans la Réserve Nationale de Chasse et faible densité (5 animaux pour 100 hectares) à l'extérieur de la Réserve. Trois séries de relevés ont été effectuées avec la même méthode (printemps, fin de l'été, hiver). Dans la chênaie, la biomasse totale est plus importante en faible densité qu'en forte densité. Ce phénomène n'est pas observé dans la hêtraie. Dans tous les cas, elle est maximale au printemps. Des differences de la composition spécifique de la végétation sont observées entre la zone en réserve et l'extérieur. Le lierre(Hedera helix) est très abondant hors de la réserve. Le fragon(Ruscus aculeatus) et les mousses sont plus développées dans la réserve. L'impact du chevreuil se traduirait par une modification de la composition de l'équilibre végétal, le développement des espèces refusées par cet animal et la raréfaction des espèces appétentes.
    Notes: Zusammenfassung Zur Beurteilung des Einflusses des Rehwildes (Capreolus capreolus) auf die Vegetation wurde die diesen Tieren zugängliche Biomasse in zwei Waldgesellschaften (Eichen- und Buchenwald) mit unterschiedlicher Populationsdichte (hohe Dichte: 20 Stück/100 ha; niedrige Dichte 5 Stück/100 ha) im Staatsforst von Chizé (Frankreich) erhoben. Drei Probeaufnahmen wurden mittels der gleichen Methode (Frühjahr, Spätsommer, Winter) durchgeführt. Die Gesamtbiomasse liegt im Eichenwald höher bei niedriger als bei starker Populationsdichte. Gleiches Phänomen kann im Buchenwald nicht festgestellt werden. In allen Fällen wird die maximale Biomasse im Frühjahr erreicht. Unterschiede in der spezifischen Vegetationszusammensetzung zwischen Gehege-und Freiflächen konnten beobachtet werden. Efeu (Hedera helix) ist außerhalb des Geheges reichlich vorhanden. Segge (Ruscus aculeatus) und Moosarten sind im Gehege stark vertreten. Der Einfluß der Rehe wird durch die Veränderung des Vegetationsgleichgewichtes, der Entwicklung von verweigerten und Seltenwerden der bevorzugten Pflanzenarten, eindeutig.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02283064
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  • 2
    Electronic Resource
    Electronic Resource
    Bonner Jägertage 1988 (1988)
    Springer
    European journal of wildlife research 34 (1988), S. 262-276 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02283068
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  • 3
    Electronic Resource
    Electronic Resource
    Untersuchungen über das jahreszyklische Verhalten der Blutspiegel von Thyroxin und Harnstoff beim Reh (Capreolus capreolus) (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 1-11 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary At 3-weekly intervals over a period of 13 months, blood samples were taken from the jugular vein of 8 male and 8 female roe deer kept in research enclosures, so that the total of thyroxin (T4 D), T3 U and ureal nitrogen could be established. Once a week the level of activity of the metatarsal glands was recorded by observation. The thyroid gland hormone levels were not dependent upon sex but were higher in the second and third years than in calves (9–17 months). Seasonal differences were observed in the form of higher proportions of T4 in winter, April/May and July. The index free thyroid gland hormone showed no significant seasonal alterations. There is no obvious daily rhythm. No clear relationship between thyroxin content in the blood and activity of the metatarsal glands was discovered. Two-fold high doses of thyroxin did not stimulate production of pheromon noticeably. The level of urea in the blood is somewhat higher in young roe deer than in adults. The level falls in winter and reaches a maximum in summer after the rut. The urea content of blood is inversely correlated to the concentration of thyroxin — it falls as the thyroxin content of the blood rises.
    Abstract: Resumé Afin de déterminer le taux de Thyroxine totale (T4 D), de T3 U et d'Urée, des prélèvements sanguins ont été exécutés, de trois en trois semaines et pendant une période de 12 mois, au niveau de la veine jugulaire de 8 chevreuils mâles et de 8 chevreuils femelles maintenus en enclos. Chaque semaine, le stade d'activité des glandes métatarsales fut noté. La teneur du sang en hormone thyroîdienne était indépendante du sexe de l'animal et était plus élevée du cours de la 2éme et de la 3éme années que chez les chevrillards (9 à 17 mois). Des variations saisonnières de la teneur en T4 dans le sang se manisfestèrent sous forme de pics en hiver, en avril-mai et en juillet. L'indice de l'hormone libre de la glande thyroîde ne présenta aucune variation saisonnière significative. Un rythme quotidien caractérisé n'existe pas. Une relation claire entre la teneur de Thyroxine dans le sang et l'activité des glandes métatarsales n'est pas apparue. La double injection de doses élevées de Thyroxine n'a pas stimulé sensiblement la production de phéromones. Le taux d'Urée sanguine est plus élevé chez les jeunes chevreuils que chez les sujets adultes; on observe en outre une chute au cours de l'hiver et des pointes au cours de l'été aprés le rut. La corrélation entre les taux d'Urée et la concentration de Thyroxine est négative.
    Notes: Zusammenfassung Von 8 männlichen und 8 weiblichen im Versuchsgehege gehaltenen Rehen wurden in 3wöchigem Abstand über einen Zeitraum von 12 Monaten Blutproben aus der Vena jugularis entnommen und damit das Gesamtthyroxin (T4D), das T3U und der Harnstoffstickstoff bestimmt. Wöchentlich einmal wurde durch Beobachtung der Aktivitätsstatus der Metatarsaldrüsen festgehalten. Der Schilddrüsenhormonspiegel war geschlechtsunabhängig, er war im zweiten und dritten Lebensjahr höher als bei den Kitzen (9–17 Monate). Jahreszeitliche Schwankungen wurden bei T4-Blutspiegeln in Form von erhöhten Werten im Winter, April/Mai und Juli beobachtet. Der Index des freien Schilddrüsenhormons wies keine signifikanten saisonalen Veränderungen auf. Eine deutliche Tagesrhythmik besteht nicht. Ein deutlicher Zusammenhang zwischen Thyroxinblutspiegel und Metatarsaldrüsenaktivität war nicht gegeben. Zweimalige hohe Gaben von Thyroxin regten die Pheromonproduktion nicht merklich an. Der Harnstoffblutspiegel ist bei jungen Rehen etwas höher als bei erwachsenen Rehen, er fällt im Winter ab und weist Spitzenwerte im Sommer nach der Brunft auf. Der Harnstoffblutspiegel korreliert mit der Thyroxinkonzentration invers, er fällt mit steigendem Thyroxinblutspiegel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242505
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  • 4
    Electronic Resource
    Electronic Resource
    Zum Dispersionsmuster und dessen Bedeutung in der Biologie des Mäusebussards (Buteo buteo) (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 11-22 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary 1. Inquiries made in Lower Austria during two consecutive breeding periods and on two fixed days between (November, January) provided data about disperion pattern and breeding success of the Common Buzzard in different landscapes on a basis of average (1977) and high (1978) density of the Common Vole. 2. During all seasons the local population density is determined by the distribution of woods and open countryside and by the density of the Common Vole. In sparesly wooded areas woods can be densely populated by relatively many breeding-pairs, but their number is limited by the prevailing density of the Common Vole which has an influence on the extent of the Buzzard's individual cruising radius. In woodland habitats the presence of the Common Buzzard depends on the availability of suitably large open areas sufficiently rich in prey. During winter, the snow cover can cause the population to fluctuate, although the influence of the habitat on the local population density continues even during these periods. 3. The siting of eyries affects the difficulty of procuring prey. A poor supply of prey necessitates the eyrie being built near the edge of the woodland. 4. Eyries near the edge of the woodland and eyries in deciduous trees seem to be unfavourable for buzzards breeding early in the year. Microclimatic circumstances could play a role in this. 5. Breeding succes is determined by the efficiency of procuring food and the place of the eyrie with regard to the cruising radius. 6. The population of Common Buzzard which was studied is functioning successfully as regards self-regulation.
    Abstract: Resumé 1. Des enquêtes réalisées en Basse-Autriche au cours de deux périodes successives de couvaison et de deux journées intermédaires (novembre, janvier) ont permis de recueillir des données sur le mode de dispersion et sur les succès de l'élevage chez la Buse variable (Buteo buteo) dans différents sites et lors d'années avec densités moyennes de souris (1977) et fortes densités de souris (1978). 2. En toutes saisons les densités locales sont déterminées par la répartition „forêt-paysage ouvert“ et par l'abondance des souris. Dans des régions à faible taux de boisement la densité des couples nicheurs peut être relativement élevée, leur nombre étant cependant limité par le rayon d'action individuel, lequel est déterminé par l'abondance des souris. Dans les régions forestières, la densité de la Buse dépend de la présence de surfaces dégagées plus étendues et également plus riches en proies. Au cours de la mauvaise saison, l'enneigement peut déterminer des variations d'effectifs mais l'influence de la configuration du paysage sur les densités de population locales ne disparait pas pour autant. 3. La situation des aires de nidification est une question d'efficacité de la prédation. Une efficacité prédatrice moindre amène les oiseaux à installer leurs aires en bordure de la forêt. 4. Des aires installées en bordure de la forêt ou encore dans des feuillus constituent de toute évidence des situations défavorables pour la Buse, dont la période de nidification est précoce. A cet égard, des facteurs de micro-climat pouraient jouer un rôle. 5. Le succès de l'élevage des jeunes est déterminé par l'efficacité de l'approvisionnement alimentaire et par la situation de l'aire en relation avec le rayon d'action. 6. La population des buses étudiée ici se trouve dans une phase d'auto-régulation effective.
    Notes: Zusammenfassung 1. In Niederösterreich durchgeführte Erhebungen in zwei aufeinanderfolgenden Brutperioden und an zwei dazwischenliegenden Stichtagen (November, Januar) haben Unterlagen über Dispersionsmuster und Aufzuchterfolge beim Mäusebussard(Buteo buteo) in verschiedenen Landschaftssituationen bei durchschnittlichen (1977) und hohen (1978) Feldmausdichten erbracht. 2. Zu allen Jahreszeiten sind die lokalen Siedlungsdichten durch die Verteilung von Wald und offener Landschaft und durch das herrschende Feldmausangebot bestimmt. In waldarmen Gebieten können Waldflächen von relativ vielen Brutpaaren besiedelt werden, ihre Zahl ist aber durch die von der herrschenden Feldmausdichte beeinflußte Ausdehnung der individuellen Aktionsräume limitiert. In Waldlandschaften ist das Vorkommen von Mäusebussarden vom Vorhandensein entsprechend großer und ausreichend beutereicher offener Flächen abhängig. Im Winterhalbjahr kann Schneebedeckung Bestandsverschiebungen bedingen, der Einfluß der Landschaftssituation auf die lokalen Siedlungsdichten bleibt aber auch in diesen Perioden erhalten. 3. Die Lage der Horststandorte ist eine Frage der Effizienz der Beutebeschaffung. Geringe Fangeffizienzen erzwingen waldrandnahe Horststandorte. 4. Waldrandnahe Horststandorte und Horste in Laubbäumen sind für den jahreszeitlich früh brütenden Mäusebussard offensichtlich ungünstig. Mikroklimatische Faktoren können dabei eine Rolle spielen. 5. Der Aufzuchterfolg wird durch die Effizienz der Nahrungsbeschaffung und durch die Situation des Horststandortes in bezug zum Aktionsraum bestimmt. 6. Die untersuchte Population des Mäusebussards befindet sich im Stadium einer funktionierenden Selbstregulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242506
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  • 5
    Electronic Resource
    Electronic Resource
    Auswirkungen von Spargelentkrautung auf den Ertrag im Folgejahr (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 41-44 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary A six-years-old asparagus bed was partially cleared of weeds and the development of the yield in the following year was traced. Even the highest level of damage (cutting back 40 cm each week) brought about no loss in comparison with the control (weeds up to 230 cm high). More stems were formed, with a lower individual weight.
    Abstract: Resumé Dans une culture d'asperges âgée de 6 ans, l'effet de l'élimination partielle de la végétation adventice sur l'évolution de la production au cours de l'année suivante a été observé. Même le traitement le plus énergique — recoupe hebdomadaire jusqu'à 40 cm — n'entraîna aucune perte par rapport à la parcelletémoin où la végétation adventice atteignait jusqu'à 2.30 m de hauteur. Un nombre accru de tiges fut obtenu, dont le poids individuel était cependant plus faible.
    Notes: Zusammenfassung In einer sechsjährigen Spargelanlage wurde das Kraut teilweise entfernt und die Ertragsentwicklung im Folgejahr verfolgt. Selbst die stärkste Schädigungsstufe (jede Woche Rückschnitt auf 40 cm) brachte im Vergleich zur Kontrolle (Kraut bis 230 cm hoch) keine Verluste. Es wurden mehr Stangen ausgebildet, die ein geringeres Einzelgewicht hatten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242509
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  • 6
    Electronic Resource
    Electronic Resource
    Brachygnathie (Kurzkiefrigkeit) bei einem Rehbock (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 45-47 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary The skull of a one-year-old knobber with a short jaw was compared with a normal skull. Thereby it was found that the bones of the front skull (os lacrimale, os incisivum, os nasale and os maxillare) were much too small. The brain-case had roughly the normal dimensions.
    Abstract: Resumé On compare un crâne brachygnathe d'un brocard d'un an avec un crâne normal: les os de la face — en particulier ceux du larmier, de l'intermaxillaire, du nez et des maxillaires supérieurs — apparaissent sensiblement trop petits. Les os des capsules crâniennes présentaient une conformation nornale.
    Notes: Zusammenfassung Ein Schädel mit Kurzkiefrigkeit eines einjährigen Knopfbockes wird einem Normalschädel gegenübergestellt. Dabei erwiesen sich die Knochen im Gesichtsschädel — vor allem das Tränen-, Zwischenkiefer-, Nasen- und Oberkieferbein — als wesentlich zu klein. Die Knochen der Gehirnkapsel hatten etwa die normalen Größenverhältnisse.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242510
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  • 7
    Electronic Resource
    Electronic Resource
    IV. Referate (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 54-60 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242514
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  • 8
    Electronic Resource
    Electronic Resource
    Teilergebnisse der Nahrungsanalysen am Waschbären (Procyon lotor [L.]) in Nordhessen (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 61-66 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary From 1976 to 1979, 150 stomach/intestinal tracts and 250 faeces of raccoon (Procyon lotor [L.]) from North-Hessen and adjoining areas of North-Rhine Westphalia were examined on the basis of their food content. In each case, approximately one third of the food components were vertebrates, invertebrates and plants. Seasonal differences in the prey material can be detected.
    Abstract: Résumé De 1976 à 1979, le contenu alimentaire de 150 tractus digestifs et de 250 échantillons de matière fécale de ratons laveurs (Procyon lotor [L.]) récoltés dans le Nord de la Hesse et dans les régions limitrophes de Rhénanie-Westphalie a été analysé. Les Vértébrés, les Invertébrés et les végétaux se partagent chaque fois approximativement le tiers du contenu stomacal. Des variations saisonnières des quantités de proies sont décelables.
    Notes: Zusammenfassung Von 1976 bis 1979 wurden 150 Magen-Darm-Trakte und 250 Losungen des Waschbären (Procyon lotor [L.]) aus Nordhessen und angrenzenden Teilen von Nordrhein-Westfalen auf ihren Nahrungsinhalt untersucht. Annähernd jeweils ein Drittel der Nahrungsanteile entfallen auf Wirbeltiere, Wirbellose und Pflanzen. Jahreszeitlich bedingte Schwankungen der Beuteanteile sind naclizuweisen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242007
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  • 9
    Electronic Resource
    Electronic Resource
    Geweih eines europäischen Elches (Alces alces alces L., 1758) besonderer Stärke (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 72-75 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary The author describes a set of elk antlers unearthed in 1928 5 km north-west of Trzemeszno within the boundary of the village of Łukaszewko in Poland. According to the formula of the International Hunting Council for Game Preservation (Conseil International de la Chasse), 478.3 points should be awarded: according to that of the Boone and Crockett Club, 217 2/8 points. The head is compared with the best trophies from European, Asian and American elk.
    Abstract: Résumé Description est donnée d'un bois d'Elan retrouvé lors de fouilles en 1928 à 5 km au Nord-Ouest de Trzemeszno dans le canton du village de Lukazewsko en Pologne. Ce bois ateint, selon la formule du Conseil International de la Chasse, une cote de 478,3 points, et, selon la formule du Boone et Crockett-Club, une cote de 217 points 2/8. Ces bois sont comparés avec les trophées-records des différentes aires de dispersion de l'Elan en Europe, en Asie et en Amérique.
    Notes: Zusammenfassung Beschrieben wird ein 1928 5 km nordwestlich von Trzemeszno in der Gemarkung des Dorfes Łukaszewko in Polen ausgegrabenes Elchgeweih, für das nach der Formel des Internationalen Jagdrates zur Erhaltung des Wildes 478,3 Punkte, nach der Formel des Boone und Crockett Clubs 217 2/8 Punkte errechnet wurden. Verglichen wird das Geweih mit den Spitzentrophäen aus europäischen, asiatischen und amerikanischen Elchvorkommen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242009
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  • 10
    Electronic Resource
    Electronic Resource
    Ein Rehbock (Capreolus capreolus L.) mit einem Perückengehörn von außerordentlicher Stärke (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 95-97 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary The paper describes a roe buck (Capreolus capreolus L.) with “peruque” antlers of unusual dimensions. The skull with antlers weighed 6,070 gr. in the natural state and 2,020 gr. after drying.
    Abstract: Resumé Description est faite d'un Chevreuil (Capreolus capreolus L.) dont les bois, en perruque, présentent un développement exceptionnel. A l'état naturel, le poids du crâne surmonté des bois en perruque atteint 6070 gr., après séchage, 2020 gr.
    Notes: Zusammenfassung Beschrieben wird ein Rehbock (Capreolus capreolus L.) mit einem Perückengehörn von außerordentlichen Abmessungen. Das Gewicht des Schädels mit der Perücke betrug im natürlichen Zustand 6070 g, nach dem Austrocknen 2020 g.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02242013
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  • 11
    Electronic Resource
    Electronic Resource
    Alterung und zunehmende Stabilisierung des Kollagens in Geweben vom Reh (Capreolus capreolus L.) (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 75-84 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary Experiments were made to study the age determination in wildlife, particularly in the roe(Capreolus capreolus L.) with the aid of experimental gerontology methods. The results obtained were correlated with those achieved by conventional age determination (external marks of the teeth, serial layers of cementum of the teeth and dry-weight of the eye lens). The results of most experiments reflect changes in the stabilisation of collagen fibres and collagen cross linking. The following tissues were studied: ear cartilage, ear skin and flexor tendon. Alteration of the solubility of collagen in neutral salt and citrate buffer: Solubility was studied with collagen from skin and cartilage. The decrease corresponded well with the different ages of donor animals. Differential thermal analysis was done with skin and cartilage: Denaturing temperature increased by 9–10° Kelvin with increasing age for skin and cartilage. Test of the tensile strenghth with flexor tendon revealed significant differences between tendons derived from animals with different ages. It increased constantly with age.
    Abstract: Résumé Tant sur le plan écologique que sur le plan économique la faune sauvage suscite un intérêt croissant. Dès lors, la détermination de l'âge revêt de plus en plus d'importance, non seulement chez les espèces domestiques et de laboratoire mais aussi chez les espèces d'animaux sauvages. En appliquant des méthodes de gérontologie expérimentale on a tenté d'indiquer de nouvelles voies qui pourraient s'avérer profitables pour l'étude des phénomènes de vieillissement chez les animaux sauvages. Chez le Chevreuil (Capreolus capreolus L.) on a examiné les modifications, en fonction de l'âge, du tissu conjonctif de la peau de l'oreille, du cartilage de l'oreille et dans le tendon fléchisseur. Afin de subdiviser le matériel expérimental en classes d'âge, une détermination de l'âge a été effectuée sur base de caractères externes de la dentition, de la stratification cémentologique des molaires et du poids sec des cristallins oculaires. L'aspect de plus en plus réticulé du collagène a pu être mis en évidence de façon particulièrement claire par la diminution progressive de la solubilité du collagène dans les fractions solubles dans un sel neutre et dans le citrate de la peau et du cartilage de l'oreille. En outre, une thermoanalyse différentielle, effectuée sur la peau et le cartilage de l'oreille, a montré que l'augmentation, en fonction de l'âge, de la température de dénaturation de ces deux tissus, déterminait une stabilisation croissante du collagène. Un test de résistance à la traction des tendons de l'extrémité antérieure montre des différences significatives en fonction de l'âge.
    Notes: Zusammenfassung In ökologischen und wirtschaftlichen Bereichen erhalten Wildtiere eine immer größer werdende Bedeutung. Daher erscheint auch die Alterskenntnis und Altersbestimmung nicht nur bei Haus- und Laboratoriumstieren, sondern auch bei Wildtieren von großer Wichtigkeit. Es wurde versucht, durch die Anwendung von Methoden der experimentellen Gerontologie neue Wege für die Alterskenntnis in der Wildtierforschung aufzuzeigen. Vom Reh (Capreolus capreolus L.) wurden altersabhängige Bindegewebsprozesse in der Ohrhaut, im Ohrknorpel und in der Beugersehne untersucht. Um das Untersuchungsmaterial in Altersgruppen einteilen zu können, wurde eine Altersbestimmung nach äußeren Merkmalen des Gebisses, der schichtweisen Anlagerung des Zahnzements und nach dem Trockengewicht der Augenlinsen durchgeführt. Die zunehmende Quervernetzung des Kollagens konnte besonders deutlich im kontinuierlichen Verlauf der abnehmenden Löslichkeit des Kollagens in den neutralsalzlöslichen und zitratlöslichen Fraktionen der Ohrhaut und des Ohrknorpels aufgezeigt werden. Weiters wurde bei der Ohrhaut und beim Ohrknorpel eine Differential-Thermoanalyse vorgenommen. Auch hier konnte durch die Erhöhung der Denaturierungstemperatur mit zunehmendem Alter in diesen beiden Geweben eine zunehmende Stabilisierung des Kollagens aufgezeigt werden. An Beugersehnen der Vorderextremität wurde ein Sehnenreißtest durchgeführt. Die Reißzeit zeigt mit zunehmendem Alter signifikante Unterschiede.
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    Markierung und Inbesitznahme von Futter, Nachahmung und Lernen beim europäischen Wildschwein (Sus scrofa L.) (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 126-132 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary In a wild boar enclosure in Austria, one individual several years old was observed smell marking and defending food. Apples were smell marked with urine and saliva. Young animals did not eat this food after having tested it by sniffing, although the marking ♂ did. The wild boar defended his feeding ground against men. In the process, he showed in a weaker or ritualised form behavioural patterns from the innate characteristics of parading, threatening and fighting. In addition, there is a report of an old boar in which acoustic impulses (the noises of a food container being used by another boar) triggered off a demonstration of rank and appropriation at the feeding ground. This trigger was more forceful than „avoidance of the enemy“. Mention is made of a case of imitation and learning in the overcoming of an obstacle.
    Abstract: Résumé Dans un parc à sangliers situé en Autriche un sanglier mâle adulte a été observé lorsqu'il procédait à des marquages olfactifs et lorsqu'il défendait sa nourriture. Des pommes furent marquées olfactivement au moyen d'urine et de salive. Contrairement au mâle en question, des sujets juvéniles n'ont pas absorbé cette nourriture apreast en avoir goûté par voie olfactive. Le verrat défendit son lieu de nourrissage contre les humains. A cette occasion il manifesta, sous une forme atténuée ou ritualisée, un comportement spécifique de défi, de menace et de combat. On fait également état d'une démonstration de rang social et d'appropriation sur une aire de nourrissage par un sanglier mâle âgé déclenchée par des stimuli acoustiques simulant le bruit provoqué par l'utilisation de mangeoires par d'autres sangliers. Ce déclencheur était plus puissant que l'„évitement d'un ennemi“. On signale un cas d'imitation et d'apprentissage lors du franchissement d'un obstacle.
    Notes: Zusammenfassung In einem österreichischen Wildschweingatter wurde ein mehrjähriger Keiler beim Duftmarkieren und Verteidigen von Futter beobachtet. Mit Harn und Speichel wurden Äpfel geruchlich markiert. Jungtiere haben dieses Futter nicht verzehrt, nachdem sie es olfaktorisch geprüft hatten, wohl aber das markierende ♂. Gegenüber Menschen verteidigte der Keiler seinen Futterplatz. Dabei zeigte er in abgeschwächter od. ritualisierter Form Verhaltensweisen aus dem innerartlichen Imponier-, Droh- und Kampfverhalten. Es wird ferner berichtet über einen alten Keiler, bei dem akustische Reize, die Geräusche eines von anderen Wildschweinen benutzten Futterbehälters, eine Rang- und Inbesitznahmedemonstration am Futterplatz auslösten. Dieser Auslöser war stärker als die „Feindvermeidung“. Ein Fall von Nachahmung und Lernen bei der Überwindung eines Hindernisses wird erwähnt.
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    Lanugo als Bestandteil des Darmpechs beim neugeborenen Seehund (Phoca vitulina L.) (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 159-161 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary Pathological-anatomical examination of dead new-born seals in the Elbe estuary established that the seal foetus swallows some of the embryonic hair (Lanugo) disposed of within the uterus before birth. These swallowed hairs contribute to the first faeces or meconium. In this connection, the causes of intestinal blockade are discussed with regard to environmental disturbances in the seal nurseries.
    Abstract: Résumé Lors de l'examen pathologique des morts-nés du Phoque de l'estuaire de l'Elbe, il a pu être montré que le foetus de Phoque avale, avant la mise-bas, des parties du pelage laineux embryonnaire (lanugo) abandonné dans l'espace intrautérin. Ces poils digérés constituent un des éléments du méconium. Dans ce contexte sont discutées les causes d'un comportement de ce méconium eu égard aux modifications de milieu observées près des bancs de sable fréquenté par le Phoque.
    Notes: Zusammenfassung Bei der pathologisch-anatomischen Untersuchung von verendeten neugeborenen Seehunden aus dem Elbeästuar konnte nachgewiesen werden, daß der Seehundfetus Teile der intrauterin abgestoßenen Embryonalbehaarung (Lanugo) vor der Geburt abschluckt. Diese abgeschluckten Haare werden zum Bestandteil des Darmpechs oder Mekoniums. Es werden in diesem Zusammenhang die Ursachen für eine Darmpechverhaltung unter Berücksichtigung von Umweltstörungen im Bereich der Seehundbänke diskutiert.
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    URL: http://dx.doi.org/10.1007/BF02242532
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    Erfahrungen zur Sedierung und Immobilisation von in Gattern gehaltenem Damwild (1980)
    Springer
    European journal of wildlife research 26 (1980), S. 153-158 
    Details
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Summary From a fallow enclosure of over 20 hectares stocked with 40 animals (bucks, adult and 2-year-old does, fawns), 10 were to be removed either for transfer to other enclosures or for sale. The escape distance of the animals was so great that the task in hand could not be achieved by means of an airgun or compressed air rifle (reliable ranges 15 and 30 m respectively). With the administering of Diazepam by mouth, the escape distance could be reduced to 10 – 20 m, and sometimes less, so that a Xylazin-Ketamin mixture designed to immobilise could be used without difficulty. The general difficulties of oral medication and its effects were described in detail as well as unforeseen incidents. It was established that a dose of 30 – 40 mg Diazepam per kg of live-weight was sufficient for the required sedation.
    Abstract: Résumé Dans le but d'un transfert dans un autre enclos et pour les besoins d'une vente un prélèvement de 10 animaux — parmi les 40 que comptait un enclos à daims de plus de 20 ha — a été organisé. La distance de fuite des animaux était tellement grande que ce projet ne put être réalisé au moyen d'une sarbacane (dont la portée efficace se situe entre 15 et 30 m). Par administration orale de Diazepam la distance de fuite a put être ramenée à 10 à 20 m — voire parfois à une moindre distance encore — de telle sorte qu'un composé de Xylazine — Cétamine put être administré sans difficultés. Les difficultés générales de la médication orale de même que les effets et incidents probables sont décrits de façon détaillée. Il fut constaté qu'une dose de 30 à 40 mg de Diazepam par kg de poids du corps suffisait pour obtenir la sédation nécessaire.
    Notes: Zusammenfassung Aus einem über 20 ha großen Damwildgatter, besetzt mit 40 Tieren (Hirsche, Alt- und Schmaltiere, Kälber) sollten zwecks Umsetzung in andere Gatter sowie zum Verkauf 10 Tiere entnommen werden. Die Fluchtdistanz des Wildes war so groß, daß mittels Blasrohr bzw. Blastrohrgewehr (sichere Reichweiten 15 bzw. 30 m) die gestellte Aufgabe nicht zu erfüllen war. Durch peroralen Einsatz von Diazepam war die Fluchtdistanz der Stücke auf eine Entfernung von 10 bis 20 m, z. T. darunter, zu reduzieren, so daß ein Xylazin-Ketamin-Gemisch zur Immobilisierung ohne Schwierigkeiten zu applizieren war. Die generellen Schwierigkeiten der peroralen Medikation sowie Wirkungen und Zwischenfälle wurden eingehend beschrieben. Es wurde festgestellt, daß eine Menge von 30 bis 40 mg Diazepam kg/Kgw zur notwendigen Sedierung ausreicht.
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    Buchbesprechungen (1988)
    Springer
    European journal of nutrition 27 (1988), S. 71-74 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021297
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  • 16
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    Serum-Vitamin-A-Bestimmungen und ihre Aussagekraft zum Vitamin-A-Status (1988)
    Springer
    European journal of nutrition 27 (1988), S. 57-70 
    Details
    ISSN: 1436-6215
    Keywords: Retinol ; Vitamin-A-Status ; Vitamin-A-Serumbestimmung ; Hypervitaminose A ; Hypovitaminose A ; retinol ; vitamin A status ; vitamin A serum determination ; hypervitaminosis A
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary As demonstrated in the literature on vitamin A metabolism and homeostasis of retinol in serum, the concentration of retinol in serum is regulated very exactly if the liver stores are within the physiological range (20–300 Μg/g liver). Therefore, the serum level indicates the status of vitamin A storage only if there is an extreme depletion or overconsumption of vitamin A. At marginal depletion, however, there is damage to peripheral tissue before changes in the vitamin A level in serum occur. At the beginning of hypervitaminosis A, changes in the level of vitamin A in serum also occur later. Therefore, the determination of vitamin A in serum gives no information on the adequacy of liver reserves for judging the necessity of a substitution.
    Notes: Zusammenfassung Wie viele Arbeiten über den Vitamin-A-Metabolismus und Retinol-Serumhomöostase zeigten, unterliegt die Retinol-Serum-Konzentration im physiologischen Bereich der Leberreserven (20–300 Μg/g Leber) einer strengen Regulation. Daher gibt der Serumspiegel nur bei einem extremen Mangel oder bei übersättigung mit Vitamin A Auskunft über die Speichervorkommen. Im Grenzbereich, dem marginalen Mangel, kommt es aber schon zur Schädigung peripherer Gewebe, bevor sich der Retinol-Serumspiegel verändert. Auch bei beginnender Hypervitaminose A zeigen sich Veränderungen im Serumspiegel erst zu einem späteren Zeitpunkt. Daher ist die Bestimmung des Vitamin-A-Serumspiegels kein guter Indikator für den Vitamin-A-Status und die Beurteilung der Notwendigkeit einer Substitution.
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    URL: http://dx.doi.org/10.1007/BF02021296
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    Longitudinal examinations in the course of dietotherapy of mentally retarded obese in-patients (1988)
    Springer
    European journal of nutrition 27 (1988), S. 101-108 
    Details
    ISSN: 1436-6215
    Keywords: mental retardation ; obesity ; body size ; serumlipids ; low-energydiet ; geistige Behinderung ; Übergewicht ; Serumlipide ; kalorienarmeDiät
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Geistig behinderte, übergewichtige Patienten, die in einem geschlossenen Kollektiv lebten, verwendeten neun Monate lang eine kalorienreduzierte Kost (4,2–4,6 MJ). Während der Untersuchungsperiode war eine Körpergewichtsverminderung von 13±5,5 kg bei den Männern und 16±2,6 kg bei den Frauen zu beobachten. Vor der Diättherapie und im neunten Monat wurden anthropometrische Untersuchungen durchgeführt. Wir konnten feststellen, daß der prozentuale Anteil des Körperfetts, nach BMI berechnet, deutlich abnahm. Anhand der Hautfaltmessungen dagegen zeigte sich diese Verminderung weniger deutlich. Das ist Wahrscheinlich auch auf die Schwierigkeiten zurückzuführen, die während der Messungen infolge körperlicher Mißbildungen auftraten. Die klinischen Laboruntersuchungen, die vor Beginn der diätetischen Behandlung sowie im vierten und siebten Monat durchgeführt wurden, weisen darauf hin, daß eine kalorienarme Kost mit ausgeglichenem Nährstoff- bzw. Eiweißgehalt dem Eiweißstoffwechsel nicht schadet und den Triglycerid- und Cholesterinspiegel im Serum günstig beeinflußt, andererseits aber eine ungewünschte Cholesterinverminderung in der HDL-Fraktion verursacht.
    Notes: Summary Mentally retarded obese in-patients were fed by low-energy diet (4.2–4.6 MJ) for 9 months. During this period, an average of 13±4.5 kg loss of body mass occurred in men and 16±2.7 kg in women. Anthropometric measurements were performed before starting the dietotherapy and in the ninth month. Changes of body fat could be followed well when calculated according to BMI. Less reliable results were obtained with skinfold thickness Measurements, presumably due to body deformities. Results of clinical laboratory tests, which were carried out before starting the dietotherapy and in the fourth and seventh months, suggested that a low-energy-containing diet with balanced nutrient content and adequate protein intake did not lrnpair protein metabolism, favourably affected serum triglyceride and cholesterol levels, but resulted in an unfavourable decrease in the HDL-cholesterol content.
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    Zum Einfluß von marginalem Zinkmangel auf die humorale Immunität der Ratte (1988)
    Springer
    European journal of nutrition 27 (1988), S. 126-136 
    Details
    ISSN: 1436-6215
    Keywords: marginalerZinkmangel ; humoraleImmunität ; Immunglobuline der Ratte ; marginalzinc deficiency ; humoralimmunity ; ratimmunoglobulins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The purpose of this experiment was to examine the effects of a marginal zinc deficiency on serum immunoglobulin (Ig) IgM and IgG1 levels. 60 weanling female Sprague-Dawley rats were divided into six groups of ten animals each. Two control groups (73.7 ppm Zn) and two zinc-deficient groups (4.3 ppm Zn) were fed a semisynthetic casein diet ad libitum. The animals of two further groups received the control diet (73.7 ppm Zn) pair-fed to the zinc-deficient animals. After 15 days the rats of one group of each treatment were infected i.m. with a single injection (0.2 ml) of a bovine enterovirus, apathogenous to rats. 3 weeks later, all rats were anesthetized with ether and decapitated. Infection of the rats with the bovine enterovirus had no effect on the serum immunoglobulin level. The marginal zinc deficiency did not alter the IgM and IgG1 serum concentrations at all either. It remains to be examined whether other Ig-classes will react to marginal zinc deficiency. Also, the effect of severe zinc deficiency on the humoral immune system must be studied.
    Notes: Zusammenfassung In einem Versuch mit 60 weiblichen entwöhnten Sprague-Dawley-Ratten wurde geprüft, ob marginaler Zinkmangel direkte Auswirkungen auf die Serumimmunglobulinspiegel IgM und IgG1 zeigt. Die Ratten wurden in 6 Behandlungsgruppen zu je 10 Tieren eingeteilt. Zwei Kontrollgruppen (73,7 ppm Zn) und die beiden marginalen Zinkmangelgruppen (4,3 ppm Zn) wurden ad libitum mit einer halbsynthetischen Diät auf Caseinbasis versorgt. Die Tiere zweier weiterer Gruppen erhielten pair-fed zu den Mangeltieren eine Kontrolldiät mit ebenfalls 73,7 ppm Zn. 15 Tage nach Verfüttern dieser Diäten wurde jeweils eine Gruppe der unterschiedlich versorgten Tiere mit einem für Ratten apathogenen Rinderenterovirus (0,2 ml pro Ratte) i.m. infiziert. 3 Wochen später wurden alle Tiere mit Ether betäubt und dekapitiert. Die Infektion der Ratten mit dem bovinen Rinderenterovirus blieb ohne Einfluß auf den Immunglobulin-(Ig-)Spiegel. Auch der marginale Zinkmangelzustand, wie er in der vorliegenden Untersuchung auftrat, führte bei den Versuchstieren zu keinen Veränderungen in der IgM- und IgG1-Konzentration des Serums. Es bleibt zu untersuchen, ob andere Immunglobulinklassen eher auf marginalen Zinkmangel ansprechen oder welchen Einfluß ein extremer Zinkmangel bei der Ratte ausübt.
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    Buchbesprechungen (1988)
    Springer
    European journal of nutrition 27 (1988), S. 201-205 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02024723
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  • 20
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    The effect of a free mackerel-supplemented diet on plasma and lipoprotein lipid concentrations in normolipidemic subjects (1988)
    Springer
    European journal of nutrition 27 (1988), S. 216-221 
    Details
    ISSN: 1436-6215
    Keywords: cholesterol ; triglycerides ; lipoproteins ; ω 3 fatty acids ; Cholesterol ; Triglyceride ; Lipoproteine ; ω-3-Fettsäuren
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung In einem Kurzzeit-Experiment wurde an gesunden, normolipidämischen Probanden geprüft, ob durch einen mäßig hohen Fischverzehr der Gehalt an Plasma- und Lipoproteinlipiden gesenkt werden kann. 8 Teilnehmer aßen eine Woche lang täglich 100 g Makrele (entsprechend etwa 2,5–3 g ω-3-Fettsäuren). Die Triglycerid-Konzentrationen im Plasma und in den VLDL und LDL waren nach der Fischdiät um 40, 46,7 und 38,5 % niedriger als zu Beginn des Experiments. Die Plasmacholesterol-Konzentration war nur geringfügig erniedrigt, das Verhältnis HDL/Gesamt-Cholesterol aber signifikant erhöht. Die Studie zeigt, daß eine moderate Steigerung des Fischverzehrs bei gesunden, normolipidämischen Probanden innerhalb einer Woche — selbst auf der Basis einer nicht strikt kontrollierten Diät — die Lipidspiegel verändern kann.
    Notes: Summary The effect of mackerel consumption on plasma and lipoprotein lipid concentrations was studied in a seven-day experiment in eight healthy, normolipidemic subjects. Participants ate about 100 g mackerel (corresponding to about 2.5–3 g ω3 fatty acids daily. The mean triglyceride concentrations in total plasma, VLDL, and LDL were significantly reduced by 40, 46.7, and 38.5 % respectively after fish consumption. There was also a small (non-significant) reduction of plasma cholesterol and a (significant) increase of the ratio of HDL/total plasma cholesterol. These data show that a moderately increased intake of ω-3 fatty acids by fish food can change lipid characteristics in healthy normolipidemic individuals within a short-time period, even on a free diet.
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    URL: http://dx.doi.org/10.1007/BF02019509
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    Effect of dietary cholesterol on spermatogenesis (1988)
    Springer
    European journal of nutrition 27 (1988), S. 236-243 
    Details
    ISSN: 1436-6215
    Keywords: cholesterol feeding ; spermatogenesis ; Leydig's cell ; VLDL/LDL-cholesterol ; Cholesterinfütterung ; Spermatogenese ; Leydig-Zellen ; VLDL/HDL-Cholesterin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Cholesterinfütterung über 120 Tage beeinträchtigt bei männlichen Ratten und Kaninchen die Testikularfunktion. Die Produktion von sekundären Spermatozyten wird bei Ratten und Kaninchen um 26,1 % bzw. 46,9 % reduziert. Ferner kommt es zu einer signifikanten Reduktion der Spermatid-Population, der Samenkanälchen und der Dimension der Zellkerne der Leydig-Zellen. Im Aortenendothel finden sich bei der Ratte einige Alterationen, beim Kaninchen dagegen voll ausgeprägte atherosklerotische Plaques. Gesamtcholesterin, Triglyceride und Phospholipide in den Testes nehmen zu, während der Gehalt an Glykogen in den Testes abnimmt. Die Cholesterinkonzentrationen im Serum sind bei Ratten dreifach, bei Kaninchen siebenfach erhöht, wobei LDL-Cholesterin ansteigt, der Quotient HDL-Cholesterin/Gesamtcholesterin dagegen signifikant abfällt. Als Schlußfolgerung ergibt sich, daß Hypercholesterinämie neben dem Aortenepithelium auch die Hodenfunktion beeinträchtigt.
    Notes: Summary Cholesterol fed to male rats and rabbits for 120 days impaired testicular function. The production of secondary spermatocytes in rats and rabbits was reduced by 26.1% and 46.9%, respectively. There was significant reduction in spermatid cell population, seminiferous tubules, and Leydig's cell nuclear dimensions. In rats aortic endothelium showed some alterations while in rabbits full-blown atherosclerotic plaque containing a necrotic core and a proliferative fibrous cap was found. Total cholesterol, triglycerides and phospholipids of the testes were increased whereas, testicular glycogen was significantly reduced. Three- and sevenfold increases were noticed in the serum cholesterol levels of rats and rabbits. The LDL cholesterol values were increased while the HDL cholesterol/Total cholesterol ratio was significantly decreased (P〈0.001). It is concluded that hypercholesteromia affects the testicular function and aortic endothelium.
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    URL: http://dx.doi.org/10.1007/BF02019512
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    Verbesserung der biologischen Verfügbarkeit von Zink in Schrot- und Knäckebrot (1988)
    Springer
    European journal of nutrition 27 (1988), S. 244-251 
    Details
    ISSN: 1436-6215
    Keywords: Phytinsäure/Zink-Quotient ; Vollkornbrot ; Knäckebrot ; Zink alkalische ; Phosphatase ; phytic acid/zinc ratio ; wholemeal bread ; crispbread ; zinc alkaline ; phosphatase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary A study was untertaken to determine whether the reduction of the molar phytic acid/zinc ratio by enrichment of wholemeal and crispbread with zinc improves zinc availability to the same extent as does the reduction of phytic acid in whole meal cereal products. For three weeks, five diets (three samples of wholemeal bread and two samples of crispbread)) were fed to growing rats. Significant increases in bone-zinc deposition and activity of serum alkaline phosphatase were induced by those bread samples in which the phytic acid/zinc ratio had been lowered either by enrichment with zinc or by reduction of phytic acid (enzymatic hydrolysis by adjusting the pH-value of the dough with lactic acid) when compared with untreated bread samples. Weight gain of the animals differed little between the groups. The results suggest that it is possible to improve zinc availability in wholemeal cereal products high in phytate by enrichment with zinc.
    Notes: Zusammenfassung Es wurde geprüft, ob die Verringerung des molaren Phytinsäure/Zink-Quotienten in Vollkorn- oder Knäckebrot mit einem hohen Phytinsäuregehalt durch Anreicherung mit Zink die gleiche günstige Wirkung auf die Zinkverfügbarkeit hat wie die Reduzierung der Phytinsäure in Vollkornprodukten. In einem dreiwöchigen Versuch wurden 5 Diäten (3 Schrotbrot- und 2 Knäckebrotproben) an wachsende Ratten verfüttert. Die Proben, in denen der Phytinsäure/Zink-Quotient durch Anreicherung mit Zink oder durch Reduzierung der Phytinsäure (enzymatische Hydrolyse durch Einstellung des pH-Wertes des Teiges mit Milchsäure) verringert war, bewirkten eine signifikante Erhöhung der Zinkeinlagerung im Femur und der Aktivität der alkalischen Phosphatase im Serum der Tiere im Vergleich zu unbehandelten Brotproben. Das Wachstum der Tiere zeigte nur geringe Unterschiede zwischen den 5 Gruppen. Die Ergebnisse lassen erkennen, daß eine Verbesserung der Zinkverfügbarkeit in Getreidevollkornprodukten mit hohem Phytatgehalt durch Anreicherung mit Zink erzielt werden kann.
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    Determination of the phospholipid content of human milk, cow's milk and various infant formulas (1988)
    Springer
    European journal of nutrition 27 (1988), S. 252-265 
    Details
    ISSN: 1436-6215
    Keywords: cow'smilk ; humanmilk ; high performance liquid chromatography (HPLC) ; infant formulas ; phospholipids ; Frauenmilch ; Hochdruck-Flüssigkeitschromatographie (HPLC) ; Kuhmilch ; Phospholipide ; Säuglingsnahrungen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Mit Hilfe einer speziell hierfür entwickelten (6) Hochdruckflüssigkeitschromatographie-Methode (HPLC) wurde der Phospholipidgehalt (PL) von Frauenmilch, Kuhmilch und verschiedenen Säuglingsnahrungen bestimmt. Die Untersuchungen zeigen, daß der Gehalt an Phosphatidylinositol (PI), Phosphatidyläthanolamin (PE), Phosphatidylcholin (PC) und Sphingomyelin (SP) durch Homogenisieren und Pasteurisieren von Kuhmilch nicht verändert wird. Der Gehalt an Phosphatidylglycerol (PG) liegt hier, wie bei der Frauenmilch, unter der Nachweisgrenze. Auch bei den anderen untersuchten PL konnten zwischen Frauen- und Kuhmilch keine nennenswerten Unterschiede festgestellt werden. Der Gehalt einiger PL verändert sich im Verlauf der Spätschwangerschaft und der Post-partum-Periode charakteristisch. So liegt der Gehalt an PI, PC und SP in der Vormilch deutlich über dem Gehalt reifer Frauenmilch. Bereits vor Beginn der Wehen zeigen alle PL einen mehr oder weniger scharfen Abfall. So verliert Vormilch vor der Geburt 70 % des Gehaltes, den PL-Proben sechs Wochen vor der Geburt zeigen. Die PG-Gehalte sind allgemein in der gesamten Beobachtungsperiode sehr niedrig. Im Gegensatz zu den anderen Parametern erholt sich der PC-Gehalt drei Wochen nach der Geburt wieder, was als Ausdruck eines endogenen Surfactant-Regelmechanismus betrachtet werden kann. Weiterhin wurden 13 verschiedene Säuglingsnahrungen im Vergleich mit Kuhmilch und Frauenmilch untersucht. Dabei wurden teilweise erhebliche Unterschiede zwischen adaptierter Milch, teilweise adaptierter Milch und Spezialnahrungen, aber auch innerhalb dieser Gruppen, gefunden. Keines der bestimmten PL konnte in allen Säuglingsnahrungen nachgewiesen werden. Mit Ausnahme einiger Milupa-Säuglingsnahrungen war der PG-Gehalt allgemein niedrig. PE und PI wurden nur in einigen Spezialnahrungen nicht gefunden. Die meisten Säuglingsnahrungen enthalten hohe Gehalte an SP, die teilweise höher als der Gehalt an PC liegen. Allgemein kann gesagt werden, daß die untersuchten Säuglingsnahrungen z.T. wesentlich andere Phospholipidmuster als Frauen- und Kuhmilch aufweisen und daß zwischen einzelnen Säuglingsnahrungen erhebliche Unterschiede in der Zusammensetzung bestehen. In den meisten der untersuchten Nahrungen ist der Phospholipidgehalt so hoch, daß er durchaus als Phospholipidquelle für das Neugeborene genutzt werden kann.
    Notes: Summary The phospholipid (PL) content of human milk, cow's milk, and various infant formulas was determined by recently developed high performance liquid chromatography (6). As the examinations promised, the content of phosphatidylinositol (PI), phosphatidylethanolamine (PE), phosphatidylcholin (PC), and sphingomyelin (SP) was not changed by homogenization and pasteurization of cow's milk. Levels of phosphatidylglycerol (PG) were below the detection limit. Furthermore it has been proved that human milk and cow's milk are more or less identical in PL content. Some of the PL in human milk varies during the course of pregnancy and postpartum. PI, PC, and SP content in the prepartum mammarial secretion lies above the average content of mature human milk after delivery. Before the contractions start, all the PL examined show a more or less considerable decrease. PC drops to 30 % of the value at the beginning of the examination six weeks before delivery. PG contents are very low throughout the whole period. Contrary to the others, PC content recovers three weeks after delivery, which may be the result of the endogenous surfactant replacement system. To compare PL content with human milk and cow's milk, 13 different infant formulas have been examined. There are considerable differences to be found in and among adapted milk, partially adapted milk, and special formulas. None of the PL examined could be found in all the infant formulas, where PG content was usually low, except in some Milupa formulas. PE and PI were not to be found in some special formulas. Most of the formulas contain high amounts of SP, in some cases higher than the amount of PC. To a certain extent infant formulas contain a considerably greater amount of other PL concentrations than human milk and cow's milk. In most of the formulas examined the PL content is generally so high, that it can be used as a source of PL for the newborn.
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    Buchbesprechungen (1980)
    Springer
    European journal of nutrition 19 (1980), S. 66-68 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021075
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  • 25
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    Einfluß von unterschiedlichen Proteinmengen im Futter auf die Metabolitengehalte, NAD+/NADH-Redoxverhältnisse und Enzymaktivitäten in der Leber der Ratte (1980)
    Springer
    European journal of nutrition 19 (1980), S. 57-65 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021074
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    Mitteilungen (1980)
    Springer
    European journal of nutrition 19 (1980), S. 69-69 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021076
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  • 27
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    Schulverpflegung mit gekühlten Speisen (1980)
    Springer
    European journal of nutrition 19 (1980), S. 95-102 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021393
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    Mitteilungen (1980)
    Springer
    European journal of nutrition 19 (1980), S. 145-145 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02021398
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  • 29
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    Studies on organ-specific alkaline phosphatases in relation to its diagnostic value (1980)
    Springer
    European journal of nutrition 19 (1980), S. 154-158 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary The role of pH on tissue alkaline phosphatases have been investigated in different human tissues. Different isoenzymes have been observed in different organs. Bone and liver were similar in having the isoenzymes optimally active at 9.4 and pH 9.9. The kidney has a single alkaline phosphatase optimally active at pH 9.2, while the adrenal gland has two isoenzymes of optimum pH 9.2 and 10.1. Intestinal alkaline phosphatase was optimally active at pH 9.7.
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    URL: http://dx.doi.org/10.1007/BF02018779
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    Boulti (Tilapia nilotica Linn.) fish paste 1. Preparation and chemical composition (1980)
    Springer
    European journal of nutrition 19 (1980), S. 159-162 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary Boulti fish (Tilapia nilotica Linn.) from Naser's lake in Aswan was converted to a ready marketable product (paste) in aluminium tubes. The quality of the product was ascertained by chemical indices. The product has a good flavour and can be kept for 5 weeks without undesirable changes. It is concluded that the production of fish paste in aluminium tubes is one of the possibilities of converting fish to precooked product.
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    URL: http://dx.doi.org/10.1007/BF02018780
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    Red blood cells amino-acid pattern in protein energy malnutrition and the effect of oral dosing with single amino acids (1980)
    Springer
    European journal of nutrition 19 (1980), S. 147-153 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary R.B.C.'s amino acid pattern was investigated in control and PEM subjects. The effect of oral dosing with cysteine, tryptophan and lysine on total amino acid nitrogen level of R.B.C.s was also studied. Results revealed that in moderate and severe kwashiorkor the total essential and non-essential R.B.C.'s amino acids were decreased. In 2nd grade marasmus the total R.B.C.'s amino acids in general showed lower values than normal. After oral administration of the tested amino acids, the transport index calculated as the level of maximum value of the total R.B.C.'s amino acids reached to the fasting level was lower in malnourished cases relative to controls except in 2nd grade marasmic cases given tryptophan or lysine. This criteria was considered to indicate lower rate of amino acid transport to R.B.C.s due to lower concentration in plasma or shift of transport mechanism from active transport to exchange diffusion.
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    URL: http://dx.doi.org/10.1007/BF02018778
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    Vitamin A supply and biochemical development of the rat heart: studies on cellular DNA, RNA and protein (1988)
    Springer
    European journal of nutrition 27 (1988), S. 119-125 
    Details
    ISSN: 1436-6215
    Keywords: vitamin A ; development offetal heart ; DNA ; RNA ; protein ; rat ; Vitamin A ; Entwicklungfetaler Organe ; DNA ; RNA ; Protein ; Ratte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Die Auswirkung einer beschränkten Vitamin-A-Zufuhr bei trächtigen Ratten auf die biochemische Entwicklung des fetalen Herzens wurde untersucht. Der Vitamin-A-Status der weiblichen Ratten wurde durch Angebot von geringen, mittleren und hohen Mengen an Vitamin A während Trächtigkeit und Säugeperiode verändert (6,40 und 100 μg Retinol/Tag/kg Körpergewicht). Der Vitamin-A-Status der Muttertiere verursachte eine Veränderung in der Entwicklung des fetalen Herzens in bezug auf Gewebegewicht, DNA-, RNA- und Proteingehalt sowie der Biosynthese von DNA und Proteinen aus jeweils [3H]-Thymidin und [3H]-Leucin. In den sich entwickelnden Rattenherzen wurde eine dosisabhängige Wirkung von Vitamin A auf den DNA-, RNA- sowie den Proteinstoffwechsel beobachtet. Eine angemessene Versorgung der Muttertiere mit Vitamin A ist entscheidend für die normale Entwicklung fetaler Organe.
    Notes: Summary The effect of restricted vitamin A supply to the mother on the biochemical development of the heart in rats has been studied. The vitamin A status of female rats was varied by supplying low, medium and adequate amounts (6, 40, 100 μg retinol/day/kg body weight respectively) of vitamin A during pregnancy and suckling. The vitamin A status of the mother caused an alteration in the developmental pattern of fetal heart in parameters of tissue weight, DNA, RNA and protein contents and the biosynthesis of DNA and protein from [3H]-thymidine and [3H]-leucine respectively. A dose-dependent effect of vitamin A on the metabolism of DNA, RNA and protein was observed in the developing rat hearts. Hence, emphasis should be given to the adequate availability of vitamin A to dams for the normal growth and development of fetal organs.
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    URL: http://dx.doi.org/10.1007/BF02021651
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    Uptake of saccharin and related intense sweeteners by Streptococcus mutans NCTC 10449 (1988)
    Springer
    European journal of nutrition 27 (1988), S. 155-169 
    Details
    ISSN: 1436-6215
    Keywords: acesulfame ; anion transport ; cyclamate ; saccharin ; streptococcus mutans ; sweetener ; Acesulfam ; Anionentransport ; Cyclamat ; Saccharin ; Streptococcus mutans ; Süßstoff
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung In einem 1-Octanol/Phosphatpuffersystem war Saccharin viel stärker lipophil, als aus seiner Dissoziationskonstante abgeleitet werden kann; diese dagegen bestimmte die Verteilung von Acesulfam und Cyclamat. Die Aufnahme von Saccharin in S. mutans ergab eine 30-bis 40fache Anreicherung dieses Süßstoffs gegenüber dem Medium. Acesulfam und Cyclamat verteilten sich zwischen Zellen und Medium im wesentlichen nach einem diffusionskontrollierten Vorgang. Die Aufnahme von Saccharin in S. mutans erwies sich als von einer gleichzeitigen Zuckerfermentation abhängig, ferner auch vom Außen-pH, von der Süßstoff-Konzentration und der Zellzahl. Ohne Glykolyse — z. B. aufgrund des Verbrauchs der vorgelegten Saccharose, wegen eines zu sauren pH-Wertes im Medium oder wegen Anwesenheit von Glykolyse-Inhibitoren — war die Aufnahme von Saccharin ebenso nur diffusionskontrolliert wie die des Acesulfams und die des Cyclamats. Durch Zugabe von L-Lactat ins Medium, wodurch die Richtung des Lactat-Gradienten umgekehrt wurde, war die Saccharin-Aufnahme gehemmt. Die Aktivierungsenergie der Saccharin-Aufnahme betrug rund 18 kJ/Mol, während die Glykolyse selbst je nach Versuchsbedingungen 82–98 kJ/Mol erforderte. Bis zu 100 attomol Saccharin wurden pro Bakterienzelle gefunden. Daraus läßt sich schließen, daß die Cytomembran von S. mutans an der Vermittlung der Hemmeffekte von Saccharin auf die Zuckervergärung — durch Antiport des Intensivsüßstoffs in die Bakterienzelle im Austausch gegen Lactat — beteiligt ist.
    Notes: Summary In a 1-octanol/phosphate buffer system, saccharin was much more lipophilic than would be inferred from its dissociation constant which, however, determined the partition behavior of acesulfame and cyclamate. The uptake of saccharin into Streptococcus mutans led to a 30 to 40-fold higher concentration of this intense sweetener within cells than in the incubation medium. Acesulfame and cyclamate were distributed between cells and medium essentially in a diffusioncontrolled manner. The uptake of saccharin into S. mutans was found to depend strongly on simultaneous sugar fermentation, and in addition, on external pH, sweetener concentrations, and cell densities. Without glycolysis, caused, for example, by an exhaustion of added sucrose, too acidic external pH, or the addition of glycolysis inhibitors, the uptake of saccharin was diffusion-controlled as in the case of acesulfame and cyclamate. The uptake of saccharin was inhibited by a reversal of the direction of the lactate gradient from in → out to out → in. The activation energy of saccharin uptake into glycolyzing S. mutans was near 18 kJ/mol, while glycolysis itself required 82–98 kJ/mol as activation energy, depending somewhat on experimental conditions. Up to 100 attomol of saccharin per bacterial cell was observed. It was concluded that the cytomembrane of S. mutans was involved in mediating the inhibitory effects of saccharin by an antiport of saccharin into cells in exchange for lactate.
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    URL: http://dx.doi.org/10.1007/BF02024720
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    Chemical and nutritional studies on roselle seeds (Hibiscus sabdariffa L.) (1980)
    Springer
    European journal of nutrition 19 (1980), S. 47-49 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Nicht extrahierte und extrahierte Rosellesamen (Hibiscus sabdariffa L.) wurden zur Ermittlung von Feuchtigkeit, Rohprotein, ätherextrakt, stickstofffreiem Extrakt, Rohfasern, Asche, Calcium, Phosphor und Schwefel analysiert. Verdauungsversuche mit Hähnchen haben gezeigt: Verdaubares Rohprotein, gesamte verdaubare Nährstoffe, Stärkewert und kalkulierte Werte für metabolisierbare Energie für die nicht extrahierten Rosellesamen waren: 15,36%, 75,81%, 84,06% und 3184 kcal/kg entsprechend. Die entsprechenden Werte für die extrahierten Samen waren: 27,50%, 68,83%, 64,23% und 2891 kcal/kg. Iodnummer, Verseifungsnummer, Reichert-Meissel- und Polenske-Werte für Rosellesamen-öl waren: 15,63%, 258, 1,75 und 1,14 entsprechend.
    Notes: Summary Unextracted and extracted roselle seeds (Hibiscus sabdariffa L.) were analysed for determining moisture, crude protein, ether extract, nitrogen-free extract, crude fiber, ash, calcium, phosphorus and sulfur. Digestibility trials with cocks showed that the digestible crude protein, total digestible nutrients, starch value and calculated metabolizable energy for the unextracted roselle seeds were 15.36%, 75.81%, 84.06% and 3184 kcal/kg respectively, the corresponding values for the extracted seeds were 27.50%, 68.83%, 64.23% and 2891 kcal/kg. Iodine number, saponification number, Reichert-Meissel and Polenske values for the roselle seed oil were 15.63, 258, 1.75 and 1.14 respectively.
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    Evaluation of the effect of lead exposure on the liver in Egyptian lead tank welders (1980)
    Springer
    European journal of nutrition 19 (1980), S. 50-56 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary In a group of Egyptian lead tank welders who were exposed to lead fumes for periods to 22 years the changes in serum lipids and some of the liver function tests which may elucidate the effect of lead on the liver were investigated. The results revealed increased blood lead level associated with decreased blood haemoglobin and increased urinary excretion of delta amino levulinic acid. However, no clinical abnormalities were recorded in the exposed group of the present work. Thus the increase in serum triglycerides and B-lipoprotein together with the lowering of the phospholipid/cholesterol ratio which were found may indicate premature development of atherosclerosis. Indirect evidence of the beginning of liver fattening was also provided by the increase in serum GOT, GPT, LDH enzymes and decreased albumin/globulin ratio besides the changes in serum lipid values. It is concluded therefore that lead poisoning may have a vascular as well as hepato-toxic action.
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    URL: http://dx.doi.org/10.1007/BF02021073
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    Effect of calories restriction and protein deficiency on protein metabolism in rats (1980)
    Springer
    European journal of nutrition 19 (1980), S. 166-172 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary The changes induced by the deficiency of calories or nitrogen on the protein metabolism in rats were investigated. Animals were fed either a restricted normal diet, a protein-deficient diet or control dietad libitum. Rats receiving protein-free diet failed to grow, while the growth of animals given restricted diet was less than those fedad libitum. Despite that, the dietary deficiency of either calories or proteins caused the loss of protein and increased the incorporation of 1−C14 glycine into liver proteins. The contents of liver-free amino acids and urea were significantly increased only in the protein-deficient rats.
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    URL: http://dx.doi.org/10.1007/BF02018782
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    The effect of vitamin B12 on tetracycline-induced fatty liver (1980)
    Springer
    European journal of nutrition 19 (1980), S. 173-178 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary The effect of vitamin B12 on the metabolic alterations due to tetracycline toxicity was studied experimentally on laboratory animals. Treatment of Sprague-Dawley rats with 120 or 250 mg tetracycline (i.p.) per kg per day for two or three days caused an accumulation of lipids, mainly triglycerides in the liver of 75% of animals studied, while phospholipid level tend to decrease. These doses are approximately twice and four times the recommended maximum dose for man. In the present work no direct relationship was observed between dose of tetracycline and hepatic accumulation of triglyceride, although livers of rats treated with 250 mg tetracycline/kg appeared uniformly pale yellow. Elevated serum triglyceride was found predominantly in rats treated with 120 mg/kg, while there was no obvious difference between serum triglyceride of rats treated with 250 mg tetracycline and control rats, indicating a block in the release of hepatic triglycerides. Where protection by vitamin B12 was studied, the vitamin was given i.m. (50 μg/ animal) 3 hours before the injection of 120 mg tetracycline per kg. There was a good evidence that lipid abnormalities caused by tetracycline improved by vitamin B12. Thus both hepatic and serum total lipid and triglycerides were significantly lower than those of rats treated with tetracycline, although hepatic total cholesterol was significantly increased as in case of tetracycline only.
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    URL: http://dx.doi.org/10.1007/BF02018783
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    Nutritional evaluation of sunflower-seed protein products (1980)
    Springer
    European journal of nutrition 19 (1980), S. 191-202 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary Defatted sunflower-seed meal, sunflower-seed protein concentrate and protein isolate were fed to protein-depleted chicks. The effect of the enrichment of meal and of protein isolate with lysine, methionine, or a mixture of both on the nutritional value was investigated. Sunflower-seed protein products are primarily limited in lysine. Food consumption, weight gain and protein/efficiency ratio reveal superior performance of lysine- or lysine- and methionine-enriched meal or protein isolate, as compared to the correponding non-enriched products. Methionine enrichment does not improve the nutritional quality and even result in inferior performance. Non-enriched protein isolate supports better growth than non-enriched meal specially at later stages of chick growth.
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    URL: http://dx.doi.org/10.1007/BF02018785
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    Some minerals' content of Egyptian feedstuffs (1980)
    Springer
    European journal of nutrition 19 (1980), S. 272-275 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Es wurde die Bestimmung von fünf Mineralien in den häufigsten ägyptischen Futtermitteln durchgeführt. Knochenmehl und Fischmehl haben den höchsten Calciumgehalt mit 33,43 % bzw. 9,25 %, während Weizen und andere Getreidearten die niedrigsten Werte besitzen: 0,04 % bzw. 0,02 %. Knochenmehl und Fleischmehl haben den höchsten Phosphorgehalt: 12,31 % bzw. 5,06 %, während Getreide und Weizenstroh die niedrigsten Werte haben: 0,26% und 0,23%. Fleisch- und Fischmehl haben den höchsten Schwefelgehalt, nämlich 0,89 % und 0,68 %, während Weizenstroh und Knochenmehl die niedrigsten Werte besitzen: 0,20% bzw. 0,18 %. Reis und Weizenkleie haben die höchsten Magnesiumwerte: 395,3 und 99,8 mg/kg. Den niedrigsten Gehalt zeigen Getreidekörner und Magermilchpulver, nämlich 7,2 und 3,1 mg/kg. Knochen- und Fleischmehl haben den höchsten Eisengehalt: 0,127 % bzw. 0,084 %, während Gerste und Magermilchpulver den niedrigsten Eisengehalt von allen Futtermitteln haben: 0,004 %.
    Notes: Summary Determination of five minerals for the more common Egyptian feedstuffs was conducted. Bone and fish meals contained the highest amounts of calcium, 33.43 and 9.25 %, while wheat and corn grains contained the lowest amounts, 0.04 and 0.02 %, respectively. Bone and meat meals contained the highest amounts of phosphorus, 12.31 and 5.06 %, while corn grains and wheat straw contained the lowest amounts, 0.26 and 0.23 %, respectively. Meat and fish meals contained the highest amounts of sulfur, 0.89 and 0.68 %, while wheat straw and bone meal contained the amounts of sulfur, 0.89 and 0.68 %, while wheat straw and bone meal contained the lowest amounts, 0.20 and 0.18%, respectively. Rice and wheat brans contained the highest amounts of manganese, 395.3 and 99.8 mg/kg, while corn grains and dried skim milk contained the lowest amounts, 7.2 and 3.1 mg/kg. Bone and meat meals contained the highest amounts of iron, 0.127 and 0.084 %, while barley and dried skim milk contained the lowest amounts, 0.004 for each feed material, respectively.
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    Erhöhung der Aktivität der alkalischen Phosphatase der Dünndarmmucosa bei fettreicher Ernährung (1980)
    Springer
    European journal of nutrition 19 (1980), S. 276-279 
    Details
    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The activity of alkaline phosphatase in small intestine mucosa was increased by about 40% in rats adapted to a high fat diet in comparison to high-carbohydrate-adapted animals. As high fat-feeding leads to an increase in the intestine's capacity to absorb fat, this finding is consistent with the hypothesis that alkaline phosphatase in the small intestine epithelium plays a role in fat absorption.
    Notes: Zusammenfassung Bei fettreich gegenüber kohlenhydratreich ernährten Ratten wurden für die Aktivität der alkalischen Phosphatase der Dünndarmmucosa um ca. 40% höhere Werte gefunden. Dieser Befund steht mit der Hypothese im Einklang, da\ die alkalische Phosphatase des Dünndarmepithels bei der Fettresorption eine Rolle spielt, da fettreiche Ernährung auch zu einer Steigerung der Fettresorptionskapazität führt.
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    Einflu\ von Vitamin E und der Proteinqualität auf die hämolytische Wirkung der Trigonella-Sapogenine bei Ratten (1980)
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    European journal of nutrition 19 (1980), S. 280-289 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary The influence of vitamin E (9, 90, 450 mg dl-α-tocopherol acetate/100 g diet), protein quality and temperature (70
    Notes: Zusammenfassung In Experimenten an Ratten wurde der Einflu\ der Verfütterung von unterschiedlichen Mengen roher bzw. hitzebehandelter (70
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    Wechselwirkungen zwischen Coffein, anderen Genu\mitteln und Arzneistoffen (1980)
    Springer
    European journal of nutrition 19 (1980), S. 290-295 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Summary Caffeine is ingested not only with beverages as coffee, tea, coca-cola but also in form of many analgetic drugs. Therefore interactions of this substance with other biologically active substances and drugs should be expected, and the knowledge of these would be of practical importance. The interactions between caffeine and alcohol, smoking, salicylic acid, phenacetin, barbiturates, and theobromin are described.
    Notes: Zusammenfassung Coffein wird nicht nur in Getränken wie Kaffee, Tee, Coca-Cola, sondern auch in zahlreichen analgetisch wirkenden Mischpräparaten häufig aufgenommen. Aus diesem Grunde sind Wechselwirkungen dieser Verbindung mit anderen Wirkstoffen und Arzneimitteln zu erwarten und deren Kenntnis auch von praktischer Bedeutung. Es wird auf Wechselwirkungen zwischen Coffein und Alkohol, Rauchen, Salizylsäure, Phenacetin, Barbituraten, Nikotinsäure und Theobromin verwiesen.
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    Improvement of Supramine and development of new food mixtures for the young I. Improvement of Supramine (1980)
    Springer
    European journal of nutrition 19 (1980), S. 296-301 
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    ISSN: 1436-6215
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Notes: Summary Supramine, a food mixture produced in Egypt by El-Nil Pharmaceutical Company supported by UNICEF. The product suffers from two problems: It is not well liked by the children, and its shelf life is relatively short. Studies were made to overcome these problems. Pretreatment of the ingredients such as cooking, autoclaving or roasting markedly improved palatability of the product. Adjustment of the conditions of the enzyme action increased hydrolysis of the starchy material making the product more soft and digestable. Formulation of new mixtures gave the chance to the product to satisfy the wish of a wide sector of the consumers. The heat treatment made to the ingredients minimized contamination and prolonged shelf life of the product.
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    Receptor-like cytokinin-binding protein(s) from barley leaves (1988)
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    Journal of plant growth regulation 7 (1988), S. 1-17 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Purified fractions of soluble proteins from barley leaves have been shown to contain specific binding sites fortrans-zeatin, a natural cytokinin. Such binding is very strong in vitro in concentrated solutions of some salts (ammonium sulfate or potassium phosphate) with optimum at pH 7–8 and temperature within the range 0–20°C. The cytokinin-binding sites have high affinity for zeatin (Kd∼1.5·10−8 M) and low capacity corresponding to 1–1.5 pmol zeatin per milligram of initial soluble protein. Cytokinin binding is reversible; it is due to protein (or proteins) with molecular weight 40–45 kDa. This protein(s) does not bind3H-adenine and3H-abscisic acid. The ability of various compounds to displace3H-zeatin from its high-affinity binding sites is in strict accordance with their biological cytokinin activities. Other phytohormones as well as fusicoccin do not displace3H-zeatin from its binding sites. Specific zeatin binding is sensitive to heat, alkali, and pronase, but not to RNase treatment. The 150- to 200-fold purification of cytokinin-binding proteins was achieved by a combination of ammonium sulfate precipitation and Ultrogel AcA-54- and DEAE-cellulose chromatography. The zeatin-binding protein(s) from barley leaves is suggested to take part in cytokinin action in vivo.
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    Reduction of abscisic acid content and induction of sprouting in potato,Solanum tuberosum L., by thidiazuron (1988)
    Springer
    Journal of plant growth regulation 7 (1988), S. 37-44 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effect of [(N-phenyl-N′-1,2,3-thidiazol-5-ylurea)] (thidazuron) on sprouting of potato (Solanum tuberosum L.) tubers and the role of ABA in bud break and subsequent bud growth were studied. Abscisic acid (ABA) was quantitated by enzyme-linked immunosorbent assay (ELISA) from the peel of potato tubers. The ELISA results were also validated by gas chromatography-electron capture detector and confirmed by gas chromatography-mass spectrometry and by a lettuce hypocotyl bioassay. The degree of rest in the tubers was associated with ABA content in the peel. Basal portion (where tuber was attached to mother plant) contained the highest amount of ABA. Thidiazuron reduced ABA content and induced potato tuber sprouting. Exogenously applied ABA stimulated growth of buds that had emerged from dormancy.
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    XE-1019: Plant response, translocation, and metabolism (1988)
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    Journal of plant growth regulation 7 (1988), S. 19-26 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract XE-1019 [(E)-1-(4-chlorophenyl)-4,4,-dimethyl-2-(1,2,4-triazol-1-yl)-1-penten-3-ol] was injected into bean plants (Phaseolus vulgaris L. ‘Black Valentine’) at doses of 0.1–1000 μg/plant and caused reduced height growth, fresh weight, and leaf area 7 days after treatment. The sprout growth of California privet (Ligustrium ovalifolium Hassk.) was inhibited 52% by 10 μg and growth was further suppressed as the dose was increased to 100 μg, without injury. The shoot growth of American sycamore (Platanus occidentalis L.) and yellow-poplar (Liriodendron tulipifera L.) was progressively inhibited after 3 months as the injected dose of XE-1019 was increased from 2.5 to 240 mg/tree. Neither species was injured. Growth of 1-year-old trees of ‘Golden Delicious’ apple (Malus domestica Borkh) was inhibited 28 days after injecting the stem with 2 mg of14C-labeled XE-1019. At this time, 2% of14C activity has been translocated into the new shoots and 3% was present in the xylem and phloem of the scion. From 96 to 99% of14C-activity found in the xylem and phloem and 92% in the new shoot tissue chromatographed with XE-1019. This indicates that little degradation of XE-1019 occurred during the initial inhibition period.
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    Gibberellin biosynthesis inhibitors: Comparing growth-retarding effectiveness on apple (1988)
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    Journal of plant growth regulation 7 (1988), S. 27-36 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The relative growth inhibitory activities of paclobutrazol [(2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2(1,2,4-triazol-1-yl)pentan-3-ol]; XE-1019 [(E)-(1-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-1-penten-3-ol]; flurprimidol [α-(1-methylethyl)-α-[4-(trifluoromethyloxy)-phenyl]-5-pyrimidine-methanol]; and triadimefon (a fungicide) [1-(4-chlorophenoxy)-3,3-dimethyl-1-(1H-1,2,4-triazol-1-yl)-2-butanone] were evaluated and compared by treating the root zone of young greenhouse-grown tissue-culture-propagated ‘Gala’ (Malus domestica Borkh.) trees. At 0.25 mg/plant, only XE-1019 significantly reduced new stem length and number, area, and dry weight of leaves after 115 days. Paclobutrazol and flurprimidol both significantly reduced growth compared to controls when applied at 0.5 mg/plant, but XE-1019 was more effective. All three gibberellin (GA) biosynthesis inhibitors effectively retarded growth at a dosage of 1 mg/plant. Triadimefon applied at 10 mg/plant had essentially no effect on growth, but at 50 and 100 mg/plant it caused significant but less dramatic growth retardation when compared with the GA inhibitors. Major differences in effectiveness among the triazole GA biosynthesis inhibitors may be due to longevity of effect as well as to extent of inhibition.
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    Effects of gibberellic acid, ethephon, and 1-aminocyclopropane-1-carboxylic acid on germination ofAmaranthus caudatus seeds inhibited by paclobutrazol (1988)
    Springer
    Journal of plant growth regulation 7 (1988), S. 59-66 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The specific inhibitor of gibberellin biosynthesis, (2RS,3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol (paclobutrazol), inhibited germination ofAmaranthus caudatus L. seeds. Addition of gibberellic acid (GA3), 2-chloroethylphosphonic acid (ethephon), or 1-aminocyclopropane-1-carboxylic acid (ACC) effectively antagonized inhibition. Ethephon was found to be the most efficient antagonist. The transfer of seeds after 1 day's incubation in paclobutrazol to solutions of GA3 or ethephon reversed the inhibition, the effect increasing with increasing concentration of GA3 or ethephon. Seeds incubated in paclobutrazol for 5 days decreased sensitivity to GA3 and ethephon.
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    Efficacy of triapenthenol as a safener against metribuzin injury in soybean (Glycine max) cultivars (1988)
    Springer
    Journal of plant growth regulation 7 (1988), S. 67-75 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Triapenthenol or RSW 0411 (B(-cyclohexalmethylene)-gamma-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol), a triazole plant growth regulator, applied preemergence as a separate broadcast application, protected tolerant and midtolerant soybean cultivars from metribuzin (4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one)-induced necrotic injury, and stabilized seedling fresh weight and dry weight loss to herbicide treatment. Soybean yields were not significantly reduced by triapenthenol treatment alone, but 1.12 kg ai/ha metribuzin and a 0.56 kg ai/ha triapenthenol plus 1.12 kg ai/ha metribuzin combination reduced crop yield averaged across cultivars.
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    Epidermis integrity and epicotyl growth in azuki bean (1988)
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    Journal of plant growth regulation 7 (1988), S. 95-109 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In order to verify if epidermis integrity played a determinant role in epicotyl elongation induced by fusicoccin (FC), buffers at different pH's, and indoleacetic acid (IAA), we studied the short-term kinetics of elongation growth, the increase of fresh weight in long-term treatment, and the H+ excretion in intact, abraded, and peeled azuki bean epicotyl sections. We demonstrated that the epidermis is more sensitive to IAA, whereas the cortex is highly responsive to protons. Our data are consistent with the “acid growth theory.” In addition, our studies support the idea that the epidermis may be the tissue target for auxin, but its integrity is necessary for IAA-induced elongation.
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    Effects of temperature and daminozide on the induction of ethylene synthesis in two varieties of apple (1988)
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    Journal of plant growth regulation 7 (1988), S. 111-119 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Factors affecting the induction of ethylene synthesis in apple were investigated through their effect on the delay in ethylene production (DEP) in single fruits after harvest. DEP in Cox apples was not affected by temperature from 1 to 25°C, but in Golden Delicious, DEP was shorter below 12°C and above 20°C. An orchard treatment with daminozide increased DEP in apples held below 15°C or treated with ethylene after harvest. Experiments in which the temperature was changed after ethylene treatment showed that ethylene was less active at 5°C than at 15°C but that response to it could be equally rapid. The results suggest that endogenous ethylene is not regulatory prior to the onset of rapid ethylene synthesis.
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    Concentrations ofent-kaurene and squalene in vegetative rice shoots (1988)
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    Journal of plant growth regulation 7 (1988), S. 145-151 
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    ISSN: 1435-8107
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Ent-kaurene (ent-kaur-16-ene) and squalene were analyzed in extracts of the shoots of three cultivars of rice (Oryza sativa L.) of 14 and 28 days of age by gas chromatography-mass spectrometry (GS-MS) and GC-selected ion monitoring (GS-SIM).Ent-kaurene occurred at approximate concentrations of 〈1 to 13 ng/g f.w. in 14-day-old plants and 26 to 147 ng/g f.w. in 28-day-old plants. Shoots of the dwarf cultivar Waito-C contained much lessent-kaurene than the other two cultivars at both developmental stages. The level ofent-kaurene in the dwarf cultivar Tan-ginbozu was similar to that in the normal cultivar Nihonbare at 14 days but was lower than in Nihonbare at 28 days. Trace amounts ofent-isokaurene (ent-kaur-15-ene) were also found in the extracts of all three cultivars of shoots at 28 days. Squalene occurred in approximate concentrations from as low as 19 ng/g f.w. in 28-day-old Waito-C shoots to as much as 626 ng/g f.w. in 14-day-old Nihonbare shoots. Both Tan-ginbozu and Waito-C shoots contained less squalene than Nihonbare shoots at both developmental stages.
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    From the editor (1988)
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    Agriculture and human values 5 (1988), S. 3-5 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    Farming systems approaches to international technical cooperation in agriculture and rural life (1988)
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    Agriculture and human values 5 (1988), S. 24-34 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A farming systems approach to development has meant many things over the past 15 years, depending on its institutional and ecological setting, its target populations, and the goals motivating its implementation. Despite the diversity of approaches, and the sometimes rancorous discussion over which was best and why, the approach is now recognized in many places as the only one that can identify and respond to the needs of limited resource farm families, especially those in marginal ecosystems. Involving an iterative process of diagnosis, design, testing and extension, the farming system approach to date has done more to change research objectives at national and international institutions than to change actual farmer practices. By legitimizing what limited resource farmers do and why they do it, a farming systems approach lends itself to policy analysis as well. Recent research in farming systems suggests greater attention should be payed to exogenous variables, including policy and infrastructure, as well as to development of technology that really responds to the felt needs of limited resource farmers in improving their level of living.
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    International technical interventions in agriculture and rural development: Some basic trends, issues, and questions (1988)
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    Agriculture and human values 5 (1988), S. 6-15 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper presents some of the basic trends, issues, and questions regarding the last four decades of international development cooperation in agriculture. The impact of technical cooperation tends to account for only a small proportion of change; the bulk of the variance being caused by internal, rather than external, forces and events. The paper reviews both multilateral and bilateral technical cooperation, and then illustrates with the case of U.S. universities in international technical cooperation. It goes on to question the difference between “development” and “merely change,” and asks who are the real beneficiaries? Finally, the paper suggests the following factors affecting continuity and change as forces to be analysed with respect to any attempt at technical cooperation: biological, physical, cultural, social, economic, administrative, political, and diplomatic. The world experience of the past four decades confirms that without consideration of such a human ecology of continuity and change, well-meaning interventions in international technical cooperation are likely to have unintended consequences for both “donors” and “recipients.”
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    The political economy of fisheries development in the third world (1988)
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    Agriculture and human values 5 (1988), S. 35-48 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract International agencies have contributed significantly to the promotion of capital-intensive fisheries development programs in many Third World nations. Activities of both bilateral and multilateral development assistance agencies are examined and shown to have certain common features, notably production-oriented programs typified by the introduction of powerful new fishing technologies, and the promotion of fishery exports as a means of increasing foreign exchange earnings. The argument is advanced that these programs have been largely detrimental to the best interests of recipient nations because they have ignored both resource limitations and the distributional consequences of such development. Fisheries development programs in the Third World are seen as being shaped by a convergence of institutional and class interests between national and international agencies. The perspective of political economy is used to examine these interests and explain their relation to policy outcomes. Evidence is presented to show that international agencies have contributed to dualistic patterns of industry growth which have skewed development benefits towards a narrow urban elite. Rural small-scale fishers have been increasingly marginalized as a result of their inability to compete over a limited and, in some cases, depleted resource. Fisheries development and resource management need to be seen as complementary aspects of a single process rather than as separate activities. Central to fisheries management is the question of resource allocation between competing users. Suggestions are offered by which international development agencies can play an important role in encouraging resource use patterns which are both biologically sustainable and socially just.
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    Technology transfer: Institutions, models, and impacts on agriculture and rural life in the developing world (1988)
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    Agriculture and human values 5 (1988), S. 16-23 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Technology transfer is a multi-level process of communication involving a variety of senders and receivers of ideas and materials. As a response to market failure, or as an effort to accelerate market-driven social change, technology transfer may combine public and private aparatus or rely solely on public institutional mechanisms to identify, develop, and deliver innovations and information. Technology transfer institutions include universities, government ministries, research institutes, and what may be termed the ‘project sector’. Four farm- and village-level change models are considered: traditional community development, adoption-diffusion, training and Visit Extension, and Farming Systems Research. The challenges to technology transfer efforts center on developing indigenous capacity to generate and adapt agricultural technology to local conditions. This is the primary objective of technology transfer in agriculture and the basis for advancing rural development.
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    Great planting disasters: Pitfalls in technical assistance in forestry (1988)
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    Agriculture and human values 5 (1988), S. 49-60 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Social forestry, in contrast to traditional forestry, is intended to meet biological/environmental, procedural and equity goals. Social forestry projects may not fulfill this multiplicity of goals either because priority is given to a single goal or because various factors including the structure and norms of implementing institutions and the distribution of local power overwhelm procedural and distributive intentions. Thus, despite participatory and equitable project designs, social forestry projects may result in the distribution of benefits to the rich and costs to the poor and products that either have little local value or lose their value over time. Factors leading to these outcomes are explored and countervailing measures considered.
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    Fairness in irrigation development (1988)
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    Agriculture and human values 5 (1988), S. 61-68 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract There is in much of contemporary irrigation development a large paradox. Irrigation development, while contributing to productivity, frequently thwarts social justice—it either introduces incipient inequalities in access or it reinforces those that exist. More progressive irrigation development policies are being developed and tested in several countries. These new approaches give more attention to the role of local groups in governing irrigation systems while reducing the heavy-handed involvement of state agencies. These new approaches are seen as both consistent with achieving greater fairness in irrigation development as well as with the new fiscal realities of governments nearly everywhere. Supporting these new approaches are a set of institutions and individuals with nonengineering expertise who traditionally have not been defined as central to irrigation development.
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    Structural and technical development in agriculture: An international overview (1988)
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    Agriculture and human values 5 (1988), S. 92-100 
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    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This study investigates the socio-historical relationships existing between the development of the agricultural structure and the process of technical development. Adopting a political economy posture, it is argued that the development of technical procedures in agriculture has been aimed historically at the maximization of production and productivity. This phenomenon has been generated by the social hegemony of groups interested in the enhancement of accumulation of capital and has been translated into an emphasis on large productive units, which discriminates against small and medium farms. This pattern of development has been legitimized through a social consensus which involves an emphasis on small family producers. This contradiction is embodied in the generation of a dualistic agricultural structure characterized by the prosperity of large farms, the persistence of small farms and the crisis of medium farms and in patterns of overproduction and unavailability of food for the poor segments of society.
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    Gender related issues in international development assistance for agriculture and rural life (1988)
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    Agriculture and human values 5 (1988), S. 69-76 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In this paper, the author points out that although by-passed by international development assistance in many parts of the world, women have been providing skill and labor for agricultural production, as well as subsistence of food, water and firewood for their families. Some of the assumptions which have contributed to the marginal attention to women as agriculturalists in international development assistance programs are reviewed. Factors contributing to these assumptions, examples of achievements in development projects and persistent problems are discussed. Some issues which continue to challenge national policy makers in developing countries as well as donors are identified. The author notes that while various donors and organizations address bits and pieces of the issues intermittently, a systematic, organized and universally shared approach to the issues, within a nation state or on a global basis is lacking. She concludes that just as agricultural production inputs and information need to be modified to fit the unique constraints of any ecological niche, similarly, modifications must be made in development assistance programs to fit the specific needs of women in their agricultural roles and cultural settings.
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    Ethical and value issues in international agricultural research (1988)
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    Agriculture and human values 5 (1988), S. 101-111 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Agricultural research raises fundamental ethical and value questions going beyond those in other fields both because of its public funding and because its results have significant impacts on habitats and other species. Questions about the sustainability of modern agriculture, which are shared with other sectors, require us to examine alternative visions and structures. These can be seen to range from status quo preserving ideologies to change-oriented utopias. It is argued that at the national level current ideologies—which include positivistic approaches and belief in the neutrality of technology—mask real structural and policy choices as well as their ethical and value implications. At the international level, the export of fossil-fuel based modes of agriculture to the developing countries raises additional structural, policy, value, and ethical issues.
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    Historical forces in world agriculture and the changing role of international development assistance (1988)
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    Agriculture and human values 5 (1988), S. 77-91 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The first part of this paper discusses five sets of forces that have had a major influence on world agriculture in the post-World War II period. These include (1) high rates of population growth in the developing countries; (2) a steady increase in economic integration world-wide, driven by technological breakthroughs in the communication and transportation sectors; (3) major realignments in the values of national currencies; (4) growing distortions in economic policies in both the industrialized and developing countries; and (5) growing diffusion of new production technology from the industrialized to the developing countries. The second part reviews the changing role of international development assistance in support of agriculture in light of these historical forces. Such assistance successively stressed the development of extension services, food aid, institutional development of higher level education institutions, the development of research capacity, and rural development. A look to the future is the subject of the third part of the paper. This includes a discussion of the difficulties in sustaining U.S. foreign assistance, especially when that nation is letting its own economic house fall into such disarray.
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    From the editor (1988)
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    Agriculture and human values 5 (1988), S. 1-2 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    The cultural ecology of development: Ten precepts for survival (1988)
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    Agriculture and human values 5 (1988), S. 112-123 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper uses a cultural ecology of development approach to critique existing models of development. The critique identifies existing models as running counter to ecological and biological imperatives, placing an over-emphasis on growth as the solution to development, and resulting in considerable cultural wastage. An argument is made that many of the attempts to construct an alternative development paradigm can be grouped within the cultural ecology of development approach. Ten precepts that will enhance the long-term survivability of the earth are proposed. The final portion of the paper looks at how compatible current trends in thinking about development are with these ten precepts and assesses the prospects for adoption of these precepts in an alternative development paradigm.
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    Biotechnology and the environment: What is at risk? (1988)
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    Agriculture and human values 5 (1988), S. 26-35 
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    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper argues that the new biotechnologies will affect the natural environment primarily in two ways: by bringing relatively “wild” areas, such as forests and estuaries, under domestication, and by forcing areas now domesticated, such as farms, out of production, because of surpluses. The problem of the safety of biotechnology—the risk of some inadvertent side-effect—seems almost trivial in relation to the social and economic implications of these intentional uses. The paper proposes that we should be more concerned about the successful uses of biotechnology than about the possible mishaps or failures.
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    Book reviews (1988)
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    Agriculture and human values 5 (1988), S. 124-168 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    URL: http://dx.doi.org/10.1007/BF02217183
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    Economic development and biotechnology: Public policy response to the farm crisis in Iowa (1988)
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    Agriculture and human values 5 (1988), S. 15-25 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In periods of social crisis, policymakers become particularly vulnerable to interest groups mobilizing to compete for scarce funds. At this point, legislators are no longer able to address the specific needs of their primary constituency directly, but rather are forced to do so in pretext only. New, unfamiliar technologies provide ample ammunition for astute interest groups to take advantage of times of economic turmoil and maneuver for policy support through dramatic campaigns of “salesmanship.” By publicizing a crisis situation, dramatizing it effectively, and advertising an innovation as the solution to the crisis, legislators may be effectively persuaded to give priority to interest group pressures above and beyond those of the local constituency. Iowa's attempts to address the farm crisis through economic development strategies relying on biotechnology is examined in this paper. The results of extensive surveys of Iowa's legislators and farmers are examined and the consequences for Iowa's policy process of using biotechnology under the auspices of economic development are discussed.
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    The case against bGH (1988)
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    Agriculture and human values 5 (1988), S. 36-52 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In the voluminous literature on the subject of bGH we have yet to find an attempt to frame the issue in specifically moral terms or to address systematically its ethical implications. I argue that there are two moral objections to the technology: its treatment of animals, and its dislocating effects on farmers. There are agricultural biotechnologies that deserve funding and support. bGH is not one of them.
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    Book reviews (1988)
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    Agriculture and human values 5 (1988), S. 71-95 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    The contradictions of the biorevolution for the development of agriculture in the third world: Biotechnology and capitalist interest (1988)
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    Agriculture and human values 5 (1988), S. 61-70 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract All biotechnology-related promises are based upon its technological potential; yet, many of these promises assure the solution for chronic socio-economic problems in the Third World through a new technological revolution in agriculture. The forecasting is that such a revolution will start delivering its most profound impact early in the 21st century. However, 11 years before the year 2000, a critical analysis of its promises against its current trends indicates that the future use and impact of biotechnology in the Third World rely presently upon crucial contradictions. As a result of such contradictions—Social Goals vs. Private Gains, Social Problems vs. Technical Solutions, Agricultural vs. Industrial Revolution, Cooperation vs. Competition, and Control over Nature vs. Control Over People—there is a high likelihood that (1) traditional farming will become increasingly obsolete, (2) technological and economic dependence of developing on developed countries will persist and even increase, (3) food and fiber production will be increasingly dislocated from developing to developed countries and from farms to industries, (4) the market for specific tropical products will be destroyed and therefore entire economies may collapse, (5) hunger and poverty will persist and even increase, and (6) social unrest may increase worldwide.
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    Agricultural biotechnology research: Practices, consequences, and policy recommendations (1988)
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    Agriculture and human values 5 (1988), S. 3-14 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper reviews current trends in the development of agricultural biotechnology, including (1) the recent and potential biotechnology products and processes in the plant, animal and food sciences, and (2) the enormous increase in Federal and State government and industrial investments in biotechnology research. Next we analyze the impacts and possible consequences of agricultural biotechnology for public and private agricultural research and for the structure and nature of the food system in this country and around the world. We conclude with a range of proposals for agricultural research policies. Among the possible consequences we discuss are: (1) a shift in disciplinary emphasis in the research community to molecular biology, (2) reduction of research on systems, ecology, and the social sciences, (3) increased concentration of research funds at a small number of institutions, (4) reduction of long-term research in the public sector, (5) increased collaboration between industry, government and universities with a restriction of scientific communication, and a potential for conflict of interest, favoritism and increased scientific misconduct, (6) a change of the primary goals and agenda of the public sector research community, and (7) increased concentration in the agribusiness sector and the industrialization of the food system. Our policy suggestions include: (1) maintaining and strengthening an independent public research and teaching system, (2) striking a balance between short-term proprietary biotechnology and long-term nonproprietary research, (3) maintaining an extension system that delivers biotechnology information and products to all potential users, (4) developing a regulatory system that adequately protects the public and provides clear guidelines to industry. (5) assisting developing nations to reap the benefits of the biotechnology revolution, and (6) establishing mechanisms to foster broad-based understanding of the social and ethical issues relating to agricultural biotechnology and to promote research on the social and ethical impacts.
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    Sector as personality: Reply (1988)
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    Agriculture and human values 5 (1988), S. 96-98 
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    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    From the editor (1988)
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    Agriculture and human values 5 (1988), S. 1-3 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    Biotechnology, ethics, and the structure of agriculture (1988)
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    Agriculture and human values 5 (1988), S. 53-60 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The “new” agricultural biotechnologies are presently high-priority items on the national research agenda. The promise of increased efficiency and productivity resulting from products and processes derived from biotech is thought to justify the commitment to R&D. Nevertheless, critics challenge the environmental safety as well as political-economic consequences of particular products of biotech, notably, ice-nucleating bacteria and the bovine growth hormone. In this paper the critics' arguments are analyzed in explicitly ethical terms, and assessed as to their relative merits. In some cases, a principle of “do no foreseeable harm” as well as a clear determination of likely harms would force us to conclude that research, development, and diffusion of a product or process derived from biotechnology is ethically wrong. In all cases, one conclusion that can be reached is that everyone involved in research, development, marketing and adoption of biotech products is responsible for the results of their actions; thus, each individual has a responsibility to consider a broader range of values and goals that effect and are effected by the biotechnology effort.
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    Ethical dilemmas in agriculture: The need for recognition and resolution (1988)
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    Agriculture and human values 5 (1988), S. 4-15 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Agricultural research and education ended 100 years of funding under the Hatch Act with a decade of unprecedented criticism of goals and outcomes. This paper examines the way that planners can accommodate some of these criticisms within a framework for understanding the ethical and social goals of agriculture that is consistent with traditional practice. The paper goes on to state that some criticisms are so fundamental that they cannot be readily incorporated into this framework. They must be regarded as a challenge, both politically and intellectually, to longstanding practices within academic institutions devoted to agriculture.
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    Assessing agricultural education: Agricultural economics at a crossroads (1988)
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    Agriculture and human values 5 (1988), S. 26-33 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Colleges of agriculture are being forced to adapt to a changing world. The forces behind these changes affect all departments within the college. In this paper, the place of agricultural economics within the college and within the university is identified, the current situation facing the discipline is outlined, and strategies for responding to the forces of change are discussed. Three alternatives are available: continuation, termination, and metamorphosis. Different departments are likely to pursue different strategies. Some may disappear altogether or may be absorbed into the parent discipline, economics, or into the business school. Other departments may transform themselves into specialized sub-disciplines, such as natural resources or agribusiness departments. Still others may continue with little or no change. Whatever course is followed, strategic planning will surely be necessary.
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    Issues of academic disciplines in agricultural research (1988)
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    Agriculture and human values 5 (1988), S. 16-25 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This essay examines the growing concerns about disciplinary narrowing occurring in agricultural research and the prospects of ameliorating the detrimental effects of disciplinary compartmentalization while capitalizing on its positive effects. The general model for agricultural science is that disciplinary groupings set the logic and standards for research; the disciplinary sciences are set in a hierarchical arrangement which allows communication from the relevant basic sciences through applied research into technology development and use and problem-solving. But agricultural research throughout most of its history has been goal-oriented and, therefore, is subject to ethical judgements of its worth and consequences. Also, strategic aspects of agricultural research have been subject to the evaluations and criticisms of both scientists and critics with differing interests at stake. Goals can change and organizations can be set to enable multidisciplinary and interdisciplinary research, but both goals and organizations come up against values associated with the disciplinary quality of the research, the social setting of academic science, the competition for resources, and the scientific reward system. However, there are changes underway in the agricultural scientific community which may recast the impacts of disciplinary structuring: (1) changes in the disciplinary components of subject areas and departments, (2) evolution and introductions of integrative and systems sciences into the system, (3) infusion of the same new powerful tools into most of the sciences, and (4) increased networking among scientists of different disciplines. Given that scientists' values and personalities intrude in agricultural science and research strategies, the future of agricultural research may rest on the scientists' intellectual vision and philosophical awareness that go beyond the expected disciplinary limits.
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    Teaching agricultural history in American universities (1988)
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    Agriculture and human values 5 (1988), S. 34-39 
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    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper reports the results of a survey of the teaching of courses in agricultural history in the seventy-four Land Grant institutions in the United States and its territories. It concludes with the expression of concern that the subject matter, agricultural history, is nearly a dying field, and only heroic measures will succeed in rescuing it.
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    Agriculture and human values 5 (1988), S. 57-78 
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    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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    The legitimacy of the agricultural extension service (1988)
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    Agriculture and human values 5 (1988), S. 50-56 
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    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Traditionally, the Swedish Agricultural Extension Service has delivered technical information to farmers with the aim of increasing productivity and efficiency in farming. Present problems with overproduction of food and the negative social and environmental consequences of present farm practices has brought this traditional mission in question. In a situation of budgetary constraints it has been suggested that the funding of the governmental Agricultural Extension Service should be cut down or even discontinued altogether The article argues that this would be a mistake. The various negative consequences of modern agriculture indicate that we are far from an ideal mode of agricultural production. Instead, public opinion and new guidelines for agricultural and environmental policies call for substantial changes in Swedish agriculture with respect to pollution, preservation of non-renewable resources, maintaining an open rural landscape, ethical aspects of animal production, rural development etc. This reorientation of Swedish agriculture presumes that decision-makers, farmers, and the public at large get an opportunity to learn more about the complexities of agricultural production. In contributing to this learning process the Agricultural Extension Service would have an important mission. To be able to fulfill this mission, extension professionals must be provided an opportunity to learn a broader concept of productivity and efficiency in agriculture, for instance, how to extend cost-benefit analyses and technical criteria of efficiency to include social, environmental, and ethical aspects. Our present extension staff has not received adequate training for this task. It is suggested that all agricultural colleges need to create departments of Rural Sociology and Agricultural Humanities to provide agricultural students and professionals an opportunity to develop a better understanding of agriculture and make them prepared to take on the challenges and responsibilities they confront in developing our future agriculture.
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    Resolving normative differences or healing a “two-cultures” split? A discussion of R.D. Hollander's “values and making decisions about agricultural research” (1988)
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    Agriculture and human values 5 (1988), S. 79-83 
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    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Difficulties in getting participants in agricultural research policy disputes to work fairly with four different and sometimes conflicting normative viewpoints might be lessened by attending to the deeper cultural differences that lie behind differences of normative view. Mediation of policy disputes might work better if cultural differences were better understood and described impartially. By treating deep differences as ideological, in a non-pejorative sense, descriptions can forestall impulses to combat, improve communication, and open fresh prospects for compromise without attempting to change people's basic thinking.
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    Professional ethics in the classroom (1988)
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    Agriculture and human values 5 (1988), S. 84-91 
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    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The author describes a team taught (philosophy/agriculture) professional ethics in agriculture course at Cal Poly, San Luis Obispo. He shows how the teaching, student selection (half agriculture, half non-agriculture), topic selection and class projects (mock public forums on critical issues aimed at achieving a public consensus) were chosen to achieve one main goal, a professional ethics aimed at public service. A second goal, public awareness of the legitimate needs of agriculture, is pursued simultaneously. The public-good orientation of this model of professional ethics is distinguished from the frequent professional-defensive role found in other fields. The author indicates that agriculture's need for publicly effective and credible leadership makes the older defensive models useless today as well as wrong, given the common-good goals of ethics. A short list of goals of agriculture is proposed: sufficient, sustainable and healthy food/fiber supplies by means which respect the dignity of all participants. From these goals it is claimed that consensus “first principles” of agricultural ethics can be constructed. More fundamental first principles, such as the golden rule, are given their appropriate role. From these some simple criteria for the problem solving efforts of the students are suggested: broad consideration of technical and human impacts (no dismissal of impacts as “externalities”), awareness of the need for technical information, consideration of risk-reducing alternative tools or policies, and fair, humane and consistent risk/benefit analysis. The author concludes with a description of the impact on students, the importance of the role model of agriculture teachers in the course with the resultant importance of the team-taught format, and the need for special administrative support to attain the goals of the course.
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    Developing sustainable agriculture education in Canada (1988)
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    Agriculture and human values 5 (1988), S. 92-95 
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    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract In a number of surveys, Canadian farmers have found the absence of information to be a major obstacle to the development of sustainable agriculture. The traditional sources of information for farmers have been unable to provide them with suitable information. One reason for this deficiency is the absence of suitable training for agriculture professionals. The details of a newly created course designed to address these problems at the Faculty of Agriculture of McGill University are provided, and some suggestions made about the pedagogy and course content of an entire program.
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    Views on strategies for higher agricultural education in support of agricultural and rural development (1988)
    Springer
    Agriculture and human values 5 (1988), S. 40-49 
    Details
    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Agricultural and rural development programs can only succeed if they are based on effective participation and support of actors from the policymaking stage through all levels, including field personnel and primary producers. But these actors must possess the knowledge, attitude, and skills necessary to execute their tasks. For this reason, agricultural education and training has an integral part to play in any agricultural and rural development effort. The Food and Agricultural Organization (FAO) of the United Nations has made significant contributions to the development of agricultural education in its member countries. FAO's contributions have focused on institution building, group training, and fellowship/study tours. This paper reviews some of the lessons learned through FAO involvement in these areas and recommends directions for improvement. These recommendations include the following: 1. Higher agricultural education institutions should become more involved in rural development by participating in appropriate activities leading to the formulation of national development policies. 2. These institutions should develop education programs and curricula responding to the need of development by providing the knowledge and skills required to meet the needs of the people concerned and to solve their technical and socio-economic problems. 3. More emphasis should be placed on improving the quality of teaching and on practical training. 4. The same institutions should undertake to play a leading role in the agricultural and training systems at the national level. 5. Research should be an integral part of higher educational institution programs and the research themes should include interests of small and poor agricultural producers and measurement of research impacts. 6. Regional and inter-regional collaboration among higher agricultural education institutions should be encouraged.
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    URL: http://dx.doi.org/10.1007/BF02217647
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    Taking agricultural ethics to the forefront: A practical guide to the organizational and philosophical issues (1988)
    Springer
    Agriculture and human values 5 (1988), S. 96-101 
    Details
    ISSN: 1572-8366
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract If the field of agricultural ethics is to realize its potential and if the agricultural and philosophical communities are to address the impending changes in world food production, there is a need for education in public, governmental, and academic arenas. The development of a symposium on agriculural ethics is an effective method for “raising awareness” of the imminent need for a consolidation of philosophical and agricultural expertise. Based on experience, a series of organizational guidelines and their associated philosophical issues are presented. The initial step is a determination of the purposes of the symposium, which leads to the consideration of the choice of speakers and topics. The best series of speakers will ultimately prove to be ineffectual if the logistics of the symposium are not carefully planned. The scheduling, format, timing and location of the talks are critical. Related to these practical aspects is the organization of promotional efforts. Since one of the goals is, presumably, to enlighten a target audience, effective promotion should be a central concern. Underlying all of these considerations is the budget. How the agricultural ethics symposium at the University of Wyoming addressed these issues is presented, with a critical review of our efforts based on external evaluations.
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    URL: http://dx.doi.org/10.1007/BF02217653
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  • 87
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    Biodegradation of metolachlor in a soil perfusion experiment (1988)
    Springer
    Biology and fertility of soils 5 (1988), S. 276-281 
    Details
    ISSN: 1432-0789
    Keywords: Metolachlor ; Biodegradation ; Soil perfusion ; Microbial metabolites ; Dechlorination ; Actinomyces spp.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Degradation of the herbicide metachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] was studied in a soil perfusion system. After 28 days of perfusion, the 14CO2 evolved from a Virginia soil (soil A), which had been previously treated with metolachlor (Dual) for 5 years, accounted for 18.4% of the added 14C-metolachlor, while only 3.5% of the 14C was liberated as 14CO2 from a soil of the same field which had no history of Dual treatment (soil B). No 14CO2 was liberated from γ-irradiated soil A. After incubation, metolachlor constituted almost all the extractable 14C in sterile soil A, while about 20% of the added 14C extracted from non-sterile soil A consisted of products of metolachlor; 14.8% was identified as dechlorinated metolachlor. No mineralization occurred in actinomycete-inoculated sterile soil A, but 30% of the added 14C was recovered in the form of transformation products of metolachlor. Our results demonstrate clearly that microbial activity is responsible for the mineralization of metolachlor, and that degradation is enhanced in herbicide-acclimated soils.
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    URL: http://dx.doi.org/10.1007/BF00262131
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  • 88
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    Measurement of pH at the root surface of red clover (Trifolium pratense) grown in soils differing in proton buffer capacity (1988)
    Springer
    Biology and fertility of soils 5 (1988), S. 295-298 
    Details
    ISSN: 1432-0789
    Keywords: pH measurement ; Rhizosphere ; SB electrodes ; Proton secretion of roots ; Red clover ; Rhizotrone ; Rhizobium spp.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Measurements of pH were made at the root surface of Trifolium pratense, using Sb electrodes. Nodulated plants were grown in rhizotrones on a sandy soil free of carbonate and on a clay soil rich in carbonate. In the sandy soil, pH at the surface of root laterals was about 1 unit lower than in the bulk soil. The lowest pH values were found at the root tips. In the calcareous soil, pH measured at the root surface did not differ from pH in the bulk soil. This soil had a much higher H+ buffer capacity than the sandy soils. It seems likely that H+ ions excreted from the roots grown in the calcareous soil were directly neutralized by soil carbonate.
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    URL: http://dx.doi.org/10.1007/BF00262134
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  • 89
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    Organic phosphorus compounds as a phosphorus source for higher plants through the activity of phosphatases produced by plant roots and microorganisms (1988)
    Springer
    Biology and fertility of soils 5 (1988), S. 308-312 
    Details
    ISSN: 1432-0789
    Keywords: Organic soil P ; Phosphatase ; P uptake - ; Trifolium alexandrinum ; Hordeum vulgare L. ; Avena sativa L. ; Triticum aestivum L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The efficiency of phosphatases produced by clover, barley, oats and wheat was investigated in soils treated with sodium glycerophosphate, lecithin and phytin. Root exudates of aseptically grown clover were also examined for the breakdown of different organic P compounds in order to test the efficiency of plant-produced phosphatases. In general, the plants were able to use P from all the organic sources used in the study almost as efficiently as inorganic sources. Dry-matter yield, P uptake, acid and alkaline phosphatase activity and microbial population were increased in all the P treatments. Organic P enhanced alkaline phosphatase activity. Lecithin increased fungal, and phytin bacterial growth. There was no alkaline phosphatase activity in the asepticallly grown clover root exudates. Phosphatase released in aseptic culture after 4 weeks of clover growth was able to efficiently hydrolyse sodium glycerophosphate, lecithin and phytin. The amount of organic P hydrolysed in this and in the soil experiment surpassed plant uptake by a factor of 20. This suggests that the limiting factor on plant utilization of organic P is the availability of hydrolysable organic P sources.
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    URL: http://dx.doi.org/10.1007/BF00262137
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  • 90
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    Axial pressures generated by the earthworm Aporrectodea rosea (1988)
    Springer
    Biology and fertility of soils 5 (1988), S. 323-327 
    Details
    ISSN: 1432-0789
    Keywords: Earthworm ; Aporrectodea rosea ; Axial pressure ; Tunnelling ; Burrowing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The axial forces generated by the earthworm Aporrectodea rosea were measured by directing the earthworm to tunnel into soil discs mounted on an electronic balance connected to a datalogger. The area over which the force acted was estimated from the size of the hole created by the tunnelling. The maximum force recorded by an individual worm was 0.760 N and the mean maximum value was 0.465 N. The maximum pressures recorded was 116.5 kPa, while the mean maximum pressure was 72.8 kPa. These axial pressures are approximately one-tenth of the maximum axial pressure recorded for plant roots. The statistical distribution of activity as the worms tunnelled through the soil discs was analysed. Pressures recorded were well in excess of physiologically measured pressures and the generation of forces within muscles to achieve these pressures was calculated by some assumptions. It was estimated that there is a maximum tension in the circular muscles of 0.15 N per segment of the worm.
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    URL: http://dx.doi.org/10.1007/BF00262140
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  • 91
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    Vesicular-arbuscular mycorrhizal status of various crops in different agricultural soils of northern Greece (1988)
    Springer
    Biology and fertility of soils 5 (1988), S. 333-337 
    Details
    ISSN: 1432-0789
    Keywords: Vesicular-arbuscular mycorrhiza ; Greece ; Glomus ; Degree of root infection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary This paper reports the results of a survey of the occurrence of vesicular-arbuscular mycorrhizas and spores of the associated fungi in a variety of soils in Northern Greece. The roots of several crop species were examined for the presence of mycorrhizal structures and all samples showed evidence of infection, though to varying degrees. Cotton plants, in particular, had heavy arbuscular infection. Intact and presumably viable spores were relatively infrequent and empty non-viable spores were much more common. Soil characteristics at each sample site are reported also, but only broad generalizations are made at this stage with respect to correlations between mycorrhizal occurrence and edaphic factors.
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    URL: http://dx.doi.org/10.1007/BF00262142
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  • 92
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    Effect of indigenous and introduced vesicular-arbuscular mycorrhizal fungi on growth and phosphorus uptake of Trifolium pratense and on inorganic phosphorus fractions in a cambisol (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 55-60 
    Details
    ISSN: 1432-0789
    Keywords: Trifolium pratense ; VA mycorrhiza ; Glomusfasciculatum ; Inorganic P fractionation ; Soil sterilization ; Mycorrhizal interactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Five selected vesicular-arbuscular mycorrhizal (VAM) fungi and the native population of a cambisol were tested in sterilized soil conditions, with Trifolium pratense as host plant. Indigenous fungi were the most effective in enhancing plant growth and P uptake, which were correlated with a higher root colonization. Selected fungi did not spread further in the root after 4 months from sowing, occupying less than 10% at the end of the experiment; inoculation with Glomus fasciculatum E3 yielded a higher dry-matter production than any other VAM species, but did not significantly increase shoot P concentration above that of the non-mycorrhizal control. Interactions between indigenous and introduced VAM fungi were studied in unsterilized soil. Results from fresh and dry weights of shoots and the percentage of fungal infection showed that the native endophytes competed more efficiently in colonizing the root. Inoculation with selected VAM species did not improve plant growth. Sterilization altered the inorganic P fractions of the soil, particularly those extracted with NH4F and NaOH. Sterilized soil contained less inorganic P than unsterilized soil, but more soluble P. By the end of the experiment in sterilized soil, P extracted with NH4Cl, NH4F and NaOH and total inorganic P were significantly different among inoculation treatments, suggesting that VAM fungi may differ in their ability to take up P.
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    URL: http://dx.doi.org/10.1007/BF00257921
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  • 93
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    Short-term assay of soil urease activity using colorimetric determination of ammonium (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 68-72 
    Details
    ISSN: 1432-0789
    Keywords: Soil enzymes ; Urease ; Determination of ammonium ; Storage conditions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A rapid assay for soil urease in the absence of bacteriostatic agents has been developed. The method comprises incubation of soil with an aqueous or buffered urea solution, extraction of ammonium with 1 N KCl and 0.01 NHCl and colorimetric NH4 + determination by a modified indophenol reaction. The method is characterized by high sensitivity and stability of the coloured complex formed. Measurements obtained by this method showed that no change in urease activity occurred when field-moist samples of soils were stored at −20°C for as long as 5 months. Air-drying of field-moist soil samples may lead to an increase in urease activity.
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    URL: http://dx.doi.org/10.1007/BF00257924
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  • 94
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    Effect of chemical composition on the release of nitrogen from agricultural plant materials decomposing in soil under field conditions (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 78-83 
    Details
    ISSN: 1432-0789
    Keywords: Decomposition ; Mesh bag ; Nitrogen mineralization ; 15N
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary In two field experiments, plant materials labelled with 15N were buried separately within mesh bags in soil, which was subsequently sown with barley. In the first experiment, different parts of white clover (Trifolium repens), red clover (T. pratense), subterranean clover (T. subterraneum), field bean (Vicia faba), and timothy (Phleum pratense) were used, and in the second, parts of subterranean clover of different maturity. The plant materials were analysed for their initial concentrations of total N, 15N, C, ethanol-soluble compounds, starch, hemicellulose, cellulose, lignin, and ash. After the barley had been harvested, the bags were collected and analysed for their total N and 15N. In the first experiment the release of N was highest from white clover stems + petioles (86%) and lowest from field bean roots (20%). In stepwise regression analysis, the release of N was explained best by the initial concentrations of lignin, cellulose, hemicellulose, and N (listed according to decreasing partial correlations). Although the C/N ratio of the plant materials varied widely (11–46), statistically the release of N was not significantly correlated with this variable. The results of the second experiment using subterranean clover of different maturity confirmed those of the first experiment.
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    URL: http://dx.doi.org/10.1007/BF00257926
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    Possible influence of Rhizobium on VA mycorrhiza metabolic activity in double symbiosis of alfalfa plants (Medicago sativa L.) grown in a pot experiment (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 65-67 
    Details
    ISSN: 1432-0789
    Keywords: Rhizobium mefloti ; Glomus fasciculatus ; Medicago sativa ; Succinate dehydrogenase ; Acetylene reduction assay (ARA) ; VA mycorrhiza ; Alfalfa
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Alfalfa (Medicago sativa, L. cv Aragón) plants were grown under greenhouse conditions in pots of inert sand and vermiculite. The plants were inoculated with Rhizobium meliloti strain 102F28, with Glomus fasciculatus or with a mixture of both microorganisms. Plants inoculated with both Rhizobium and Glomus had the highest shoot dry weight and the lowest root-to-shoot ratio. Roots from dually inoculated plants also had a higher oxygen uptake and nodule nitrogenase activity than those from plants inoculated with either of the two microsymbionts alone. However, the dry weight of the roots from only VAM-infected plants was higher than those from Rhizobium or from Rhizobium plus Glomus-inoculated ones. These differences did not correlate with succinate dehydrogenase activity, which was similar between treatments. Nutrient element concentrations were increased in dually infected plants in comparison with those of plants inoculated with only Rhizobium or Glomus. These data suggest that Rhizobium may affect fungal metabolism and that the effect is not achieved via the tricarboxylic acid pathway.
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    URL: http://dx.doi.org/10.1007/BF00257923
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  • 96
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    Phytotron studies to compare nitrogen losses from corn-planted soil by the 15-N balance or direct dinitrogen and nitrous oxide measurements (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 73-77 
    Details
    ISSN: 1432-0789
    Keywords: Phytotron study ; Corn plants ; Denitrification ; 15N balance ; N2 flux by 15N method ; N2O flux by gas chromatography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Containers filled with soil mixed with potassium nitrate highly enriched in 15N were planted with corn (Zea mays L.) and kept in a phytotron under controlled conditions for 79 days. Soil water content was normally maintained at exactly 60% water-holding capacity (−33 kPa), but it was increased several times to 85% (−5 kPa) for short periods to favour denitrification. The soil headspace was sealed from the phytotron atmosphere and aerated by a continuous stream of air. Nitrous oxide emission was measured by estimating the N2O concentration differences in the air entering and leaving the containers. Emission of N2 was estimated by mass spectroscopy from changes in the N2 composition in the temporarily enclosed soil headspace. Both methods were carefully checked for accuracy by different tests. At specific times during the experiment the distribution of 15N between plants and soil was determined and a 15N balance established. Emission of N gases peaked at times of increased water content and reached maxima of 149 and 142 μg N pot−1 day−1 for N2O and N2, respectively. While N losses of 5% ± 2% were indicated by the 15N balance, only 1.1% ± 0.3% loss from 2.7 g applied N was estimated from the N2O and N2 measurements after 79 days. Possible reasons for these differences are discussed.
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    Spatial and temporal distribution of nitrogen in a puddled rice soil following application of urea-based fertilizers by different methods (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 89-92 
    Details
    ISSN: 1432-0789
    Keywords: Spatial nitrogen distribution ; Prilled urea ; Urea supergranules ; Neem cake coated urea ; Submerged rice soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field experiments were conducted on transplanted rice (Oryza sativa L., var. Ratna) in a submerged soil, in order to study the distribution of N applied at 100 kg/ha. N was introduced as prilled urea or neem cake coated urea broadcast on the soil, and as urea supergranules, 1 or 2.5 g in size, point-placed at 5 cm depth. The surface-broadcast N was found mostly in the top 0–5 cm layer of soil and there was only a small vertical movement of applied N to 5–10 cm depth. With point placement of 1-g urea granules, the fertilizer N was found mostly at 5–10 cm depth and within 2.5 cm horizontal distance from the point of placement, compared with 5–10 cm depth and within 5 cm horizontal distance from the point of placement for the 2.5-g granules. With the two broadcast applications, the NH4 +-N content reached peaks of 40–68 mg/kg soil in the top 0–5 cm of soil within the first 3–6 days, decreased at a faster rate from the 6th to 12th day and then at a slower rate up to the 32nd day. In contrast, the NH4 +-N content around the points of placement of the urea supergranules reached peaks of 570–900 mg/kg soil during the first 3–12 days after placement, then decreased rapidly during the next 6–9 days, after which the values remained more or less unchanged but were still higher than the untreated control value.
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    URL: http://dx.doi.org/10.1007/BF00257928
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    The simultaneous determination of muramic acid and glucosamine in soil by high-performance liquid chromatography with precolumn fluorescence derivatization (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 125-130 
    Details
    ISSN: 1432-0789
    Keywords: Muramic acid ; Glucosamine ; Soil ; HPLC ; Biomass
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The optimal release and quantitative estimation of muramic acid and glucosamine were studied simultaneously in soil samples. The effect of hydrolysis conditions, HCl concentration, hydrolysis time, the ratio of soil dry weight to acid, and the recovery of reference substances were investigated. Derivatization of the fluorogenic reagent o-phthalaldehyde, in the presence of 2-mercaptoethanol with the residue of a soil hydrolysate, was achieved by optimizing the relative amounts of o-phthalaldehyde to hydrolysate in the reaction mixture, the pH of both, and the incubation period. A linear relationship was found between the fluorescence response and the concentration of the test substances. The muramic acid, as well as the glucosamine (o-phthalaldehyde) derivatives gave single peaks, and complete separation from interfering substances at the picomol level was achieved in a short time (3 h preparation and 30 min for chromatography) by using high-performance liquid chromatography.
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    URL: http://dx.doi.org/10.1007/BF00257661
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  • 99
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    Root-temperature effects on competition for nodule occupancy between two Rhizobium meliloti strains (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 137-140 
    Details
    ISSN: 1432-0789
    Keywords: Rhizobium meliloti ; ELISA ; Growth temperatures ; Competition ; Medicago sativa ; Enzyme-linked immunosorbent assay
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Axenically grown alfalfa (Medicago sativa L. var. Peace) was simultaneously inoculated with Canadian commercial Rhizobium meliloti strains NRG-185 and BALSAC. The plants were grown for 7 weeks in sealed units at five different root temperatures (8°, 13°, 17°, 21°, and 25°C) and at a relatively constant air temperature (24°–30°C). Nodule occupancy by each strain was determined by enzyme-linked immunosorbent assay (ELISA). Nitrogenase activity, nodule fresh weight, and plant dry weight were also measured. The lowest root-temperature regime (8°C) resulted in substantially lower nodule numbers and weights, and plant dry weights, than the higher temperature regimes. Development of nitrogenase activity was completely inhibited at 8°C. The immunoassay of nodule-strain occupancy showed markedly different strain-nodulation responses to the various root-temperature regimes. At 8°C, 63% of nodules were occupied by both strains. Dual strain occupancy decreased from 63% to 2% with increasing root-growth temperature, while the proportion of nodules containing only strain NRG-185 increased from 9% to 75%. Nodules containing only strain BALSAC remained relatively constant at 25% from 8° to 21°C, decreasing slightly at 25°C. The results suggest that root-environment temperatures during the period of nodule formation may have major differential effects on the success of competing rhizobial strains. If this is so, then selection of Rhizobium strains with enhanced low-temperature nodulation capabilities should be possible.
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    URL: http://dx.doi.org/10.1007/BF00257663
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  • 100
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    Effects of sodium selenite on microbial activity of mull, moder and mor soils (1988)
    Springer
    Biology and fertility of soils 6 (1988), S. 148-152 
    Details
    ISSN: 1432-0789
    Keywords: Selenite ; Se-effects on soil ; Mull ; Moder ; Mor ; N-Mineralization ; Enzym activity ; CO2-production
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Effects of Na2SeO3 on microbial activity of mull, moder and mor soils were investigated with perfusion experiments under controlled laboratory conditions. Treatments with Se at 50 mg/kg reduced carbon dioxide production and dehydrogenase activity in the mor and moder soils. Se at 250 (Ah) to 1000 (L) mg/kg had to be added to the mull soil in order to affect both parameters. In contrast to the effect on respiration and dehydrogenase activity, N mineralization, especially ammonification, was stimulated by the addition of Se. This is probably due to secondary effects such as dissolution of organic matter and P desorption. The relative inhibition of arylsulfatase activity was closely correlated with a decrease in soil respiration. It was conduded that the reduction of arylsulfatase activity in Se-treated soils was the result of a reduction in enzyme synthesis.
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    URL: http://dx.doi.org/10.1007/BF00257665
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