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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 24 (1968), S. 1086-1088 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Die Wirkung auf Blutdruck, Puls, Durchblutung, Blutmenge, Plasma-Kationen und osmotischen Druck zu i.v. hypertonischem NaCl und Saccharose im Laufe der Zeit wurde in bestimmten Zeitabständen bei 7 anästhetisierten Gänsen, die der Salzdrüsensekretion fähig sind, gemessen. Die Analyse der Reaktion führt zu der Annahme, dass die Zunahme der Blutmenge und/oder die osmotische Konzentration die primären Ereignisse sein könnten, die die Sekretion der Salzdrüsen auslösen.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 53 (1966), S. 161-161 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 13 (1969), S. 135-139 
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es wurde der Einfluss von 3 verschiedenen Feuchtigkeits-bedingungen (%RF) bei 22°, 28° und 33°C auf die Gewichtszunahme und den Futterverzehr von Schweinen untersucht, die in 27 Gruppen zu je 3 Tieren aufgeteilt waren. Bei jeder Temperatur führte die Erhöhung der Feuchtigkeit zur Senkung des Futterverzehrs und der Gewichtszunahme. Die Zuwachswerte fielen zusammen mit den vorausgesagten Werten für den evaporativen Wärmeverlust bei der Atmung. Die Feuchtigkeit hatte nur eine geringe Wirkung auf die Futterausnutzung, die Rektaltemperatur und die Hauttemperatur.
    Abstract: Resume On a recherché les répercussions de 3 degrés d'humidite (% hum. rélative) différentes par 22°, 28° et 33°C sur l'augmentation de poids et la consommation alimentaire de procs. Ces derniers étaient répartis en 27 groupes de 3 animaux chacun. Pour toutes les températures, une augmentation de l'humidité se traduit par une diminution de l'alimentation et de la prise de poids. Les valeurs de croissance correspondent aux valeurs calculées de la perte de chaleur due à l'évaporation par les processus respiratoires. L'humidité n'a eu que peu d'incidence sur l'utilisation des rations alimentaires ou sur les températures rectale et cutanée.
    Notes: Abstract Twenty-seven groups of pigs of three each were raised in controlled-environment houses for 12 to 14 weeks. Three levels of humidity (% RH) were compared at temperatures of 22°, 28° and 33°C. Rate of gain and feed consumption decreased with increasing humidity at any of these temperatures, with effect of humidity increasing with increasing temperature. The rate-of-gain data were consistent with rates predicted from analysis of the effect of humidity on evaporative heat loss with respiration. Humidity had little effect on feed efficiency, rectal temperature, or skin temperature.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 10 (1966), S. 163-168 
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es wurden keine signifikanten Unterschiede in Zuwachs und in der Futteraufnahme bei der Aufzucht von Schweinen von 30 bis 100 kg beobachtet, wenn die rel. Feuchte bei den für die Produktionen optimalen Temperaturen von 45 auf 70 und 95 % erhöht wurde. Die Verschiebung der Weerte zeigt jedoch, dass mit ansteigender RH in der täglichen Körpergewichtszunahme ein Abfall von 6 bis 8 % zu bestehen scheint. Diese Reaktion ist in Übereinstimmung mit der, die nach dem Temperatur-Feuchte Index für den Menschen und nach Unterlagen über den Wärme- und Feuchtigkeitsverlust von Schweinen zu erwarten ist.
    Abstract: Résumé On ne trouve pas de différences significatives de l'augmentation de poids ou de la consommation en fourrage de porcs de 30 à 100 kg si, par température optimum pour la production, on fait passer l'humidité relative de 45 à 70 ou 95 %. Il semble cependant que cette augmentation de l'humidité relative s'accompagne d'une diminution de la croissance journalière de 6 à 8 %. Cette réaction correspond à celle qui découlerait de l'indice température/humidité chez l'homme ou des conditions de déperdition de chaleur et d'humidité chez le porc.
    Notes: Abstract No statistically significant differences in weight gains or feed consumption were found in swine raised from about 30 to 100 kg at relative humidities of 45, 70, 95 percent and at temperatures that were optimum for production. The trend of the data, however, indicated that there might be a six to eight percent decrease in average daily gain with an increase in relative humidity from 45 to 95 percent.This change is in line with that which might be inferred from the change in the temperature-humidity index developed from consideration of human comfort and from published data on swine heat and moisture loss.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 27 (1967), S. 447-449 
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary When supplied with copper, nodulated plants ofAlnus glutinosa in nitrogenfree culture solution showed significantly better growth than corresponding plants denied that element, the most marked effect being an increase in percent nitrogen in the leaf dry matter. Thus the nodular fixation of nitrogen appears to require an adequate level of copper, though the extent to which this is specific for the actual fixation process cannot be assessed from the data provided.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 8 (1957), S. 378-388 
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary 1. The effect of the presence of combined (ammonium) nitrogen in the rooting medium on nodule development has been investigated inAlnus glutinosa andMyrica gale, the plants being grown by a water culture technique with provision for the control of the level of combined nitrogen and of pH. For purposes of comparison a similar experiment with a legume (Ulex europaeus) has been included. 2. In some instances the differential treatment with combined nitrogen was commenced and inoculation effected at an early stage in plant development, while in others the plants were grown on to a larger size before these treatments were applied. 3. In the two non-legumes the presence of combined nitrogen led to an increase in the weight of nodulus formed per plant, at least at the lower levels of nitrogen. Relative to the enhanced growth of the plant as a whole, nodule development was continuously depressed as the level of combined nitrogen was increased. 4. InUlex when the nitrogen status of the plants at the time of inoculation was similar to that in the corresponding non-legume experiment, the above responses were also shown by the legume. It is concluded thatAlnus andMyrica resemble legumes closely in their responses to combined nitrogen. 5. The data show that inAlnus the effect of a given level of combined nitrogen on nodulation depends on the nitrogen status of the plant at the time of inoculation, the adverse effect tending to be stronger if the plant is initially relatively high in nitrogen. This suggests that as in legumes the effect of the combined nitrogen is exerted internally in the plant tissues.
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  • 7
    Publication Date: 1968-10-01
    Print ISSN: 0014-4754
    Topics: Biology , Medicine
    Published by Springer
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  • 8
    Publication Date: 1967-12-01
    Print ISSN: 0032-079X
    Electronic ISSN: 1573-5036
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
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  • 9
    Publication Date: 1957-05-01
    Print ISSN: 0032-079X
    Electronic ISSN: 1573-5036
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
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  • 10
    Publication Date: 1969-10-01
    Print ISSN: 0020-7128
    Electronic ISSN: 1432-1254
    Topics: Geography , Physics
    Published by Springer
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