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  • 1
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    Physiological costs and effects on the immune system of sewage sludge exposure in dab, Limanda limanda (L.) (1995)
    Elsevier
    Details
    Publikationsdatum: 1995-01-01
    Print ISSN: 0141-1136
    Digitale ISSN: 1879-0291
    Thema: Biologie , Energietechnik , Geologie und Paläontologie
    Publiziert von Elsevier
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Effects of sewage sludge exposure on growth, feeding and protein synthesis of dab (Limanda limanda (L.)) (1994)
    Elsevier
    Details
    Publikationsdatum: 1994-01-01
    Print ISSN: 0141-1136
    Digitale ISSN: 1879-0291
    Thema: Biologie , Energietechnik , Geologie und Paläontologie
    Publiziert von Elsevier
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    The development of an ELISPOT assay to quantify total and specific antibody-secreting cells in dab Limanda limanda (L.) (1991)
    Elsevier
    Details
    Publikationsdatum: 1991-04-01
    Print ISSN: 1050-4648
    Digitale ISSN: 1095-9947
    Thema: Biologie , Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Medizin
    Publiziert von Elsevier
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Proteomic sensitivity to dietary manipulations in rainbow trout (2003)
    Elsevier
    Details
    Publikationsdatum: 2003-09-01
    Print ISSN: 1570-9639
    Digitale ISSN: 1878-1454
    Thema: Biologie , Chemie und Pharmazie , Medizin , Physik
    Publiziert von Elsevier
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  • 5
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    Chapter 8 Protein synthesis in fish (1995)
    Elsevier
    In:  In: Metabolic biochemistry. Biochemistry and molecular biology of fishes, 4 . Elsevier, Amsterdam, pp. 191-220. ISBN 0-444-82082-5
    Details
    Publikationsdatum: 2018-03-08
    Beschreibung: This chapter discusses the rates of protein synthesis in fish. Protein synthesis can be viewed at a number of levels. Whole-animal values can be integrated into the descriptions of assimilation/growth or assimilation/metabolism patterns in different fish species and is the focus of the chapter. The measurement of protein synthesis rates in body organs and tissues can provide information on the extent to which differences exist among various tissues and offer a challenge in understanding the integration of organ metabolism into whole animal physiology. The majority of methods for estimating protein synthesis measure the flux of an amino acid or nitrogen. This involves the use of tracer substances—that is, amino acids labeled with an isotope, which are given in a single dose or by continuous infusion. The measurements, parameters, and formulae that are commonly employed in the studies of protein growth, synthesis, and degradation are described in the chapter. It discusses the mechanism of nutrition and protein synthesis in the fish and explains the impact that protein synthesis has upon the rates of oxygen consumption.
    Materialart: Book chapter , NonPeerReviewed
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    Protein synthesis (2001)
    Elsevier
    In:  In: Nitrogen Excretion. Fish physiology, 20 . Elsevier, San Diego, pp. 31-75. ISBN 0-12-350444-9
    Details
    Publikationsdatum: 2018-03-08
    Beschreibung: Protein synthesis is fundamental to all living organisms and it has been studied intensively and at varying levels of complexity. This chapter provides a comprehensive review of research on protein synthesis in fish, examines data to produce simple models describing protein synthesis in terms of key variables, and provides explanations for variations from expected or predicted rates of protein synthesis. The underlying there is to integrate information at the organismal level. A variety of methods for measuring protein synthesis have been used and comparison suggest they give similar results for fish. Major influences on protein synthesis are species, life-history stage, temperature, feeding, and nutrition. The effects of other factors such as pollutants, anoxia, salinity, and hormones have also been investigated. In growing fish between 20 and 50% of energy expenditure is associated with protein synthesis. Protein synthesis is, therefore, a major energy-demanding process in fish that is influenced by many environmental and biotic factors.
    Materialart: Book chapter , NonPeerReviewed
    Format: text
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  • 7
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    Effect of salinity and food ration level on the growth of Nile tilapia (Oreochromis niloticus L.) (2021)
    In:  http://aquaticcommons.org/id/eprint/18872 | 12051 | 2015-11-26 12:37:47 | 18872 | Bangladesh Fisheries Research Institute
    Details
    Publikationsdatum: 2021-07-12
    Beschreibung: The effect of salinity (0, 10 & 20‰, water temperature 28 ± 1°C) and food ration (3 and 4.5% bw/day) on food consumption and growth of Nile tilapia, Oreochromis niloticus (10.77 ± 0.21g) were investigated. Individual food consumption was measured using X-radiography technique. Salinities (0, 10 & 20‰) did not have significant effect on the growth rate of groups of Nile tilapia fed at different ration levels (3 & 4.5% bw/day). This study showed that the growth of all-male fish was significantly better than all-female fish for all three salinities and two rations. Salinities from 0 to 20‰ had no effect on growth performance of males or female fish. In the present study, it was evident that fish fed at 3% bw/day ration ate all the food offered and fish fed at 4.5% bw/day did not consumed all amounts. Also, growth performance did not significantly differ among fish fed at 3% bw/day ration level and reared at different salinities. Fish reared under higher salinities (20‰) and fed at higher ration (4.5% bw/day) level had skin lesions and injuries on their body. It was assumed that fish fed at higher ration under higher salinities (20‰) and maintained higher osmoregulatory costs together with osmotic stress may have a negative influence on the appetite of fish. Another possibility that may have affected the appetite could be the unionized ammonia levels that were high. The high-unionized ammonia levels combined with the osmotic stress may have been the cause, or have aided, development of skin lesions and injuries on the fish at higher salinities.
    Schlagwort(e): Aquaculture ; Biology ; Nile tilapia ; Oreochromis niloticus ; salinity ; food ration ; growth rate ; x-radiography
    Repository-Name: AquaDocs
    Materialart: article
    Format: application/pdf
    Format: application/pdf
    Format: 111-120
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  • 8
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    Effects of socking [sic] density on ammonia excretion and the growth of Nile tilapia (Oreochromis niloticus L.) (2021)
    In:  http://aquaticcommons.org/id/eprint/18857 | 12051 | 2015-11-26 12:22:41 | 18857 | Bangladesh Fisheries Research Institute
    Details
    Publikationsdatum: 2021-07-12
    Beschreibung: The effects of stocking density (10, 15, 50 & 75 fish in 65L tank) and ammonia excretion on the growth of Nile tilapia, Oreochromis niloticus (12.19 ± 1.21 g) were investigated. Increasing stocking density of Nile tilapia from 15 fish/tank (2.81 g fish/L) to 75 fish/tank (14.07 g fish/L) resulted in associated increase in ammonia level (1.48 ± 0.87 mg/L to 26.44 ± 11.4 mg/L) and significantly lower growth rates. Significantly better feed conversion ratios were found for fish reared at lower (15 fish/tank) stocking densities compared to higher (75 fish/tank) stocking densities. Individual growth rates were significantly better for fish reared at a lower stocking density 15 fish/tank compared to higher stocking density 75 fish/tank and size variation (coefficient of variation in weight) were positively correlated with stocking density. Although water exchange did not have a significant effect on the growth of Nile tilapia for fish stocked at 10 fish/tank (1.88 g fish/L) and 50 fish/tank (9.38 g fish/L), however, the fish in the higher stocking density (9.38 g fish/L) groups and without water exchange, significantly changed the coloration of their bodies (silver to black) which may be due to the lower oxygen levels combined with higher ammonia levels. Ammonia level increased with increasing stocking density and without water exchange. In this study, it may be suggested that when fish reared at higher stocking densities then water exchange must be taken in to consideration so as to help avoid environmental and physiological stress to the fish.
    Schlagwort(e): Biology ; Nile tilapia ; Oreochromis niloticus ; stocking density ; ammonia excretion ; growth rate
    Repository-Name: AquaDocs
    Materialart: article
    Format: application/pdf
    Format: application/pdf
    Format: 13-24
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  • 9
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    Effect of salinity on food consumption and growth of juvenile Nile tilapia (Oreochromi niloticus L.) (2021)
    In:  http://aquaticcommons.org/id/eprint/17750 | 123 | 2015-09-12 19:35:59 | 17750 | Bangladesh Fisheries Research Institute
    Details
    Publikationsdatum: 2021-06-28
    Beschreibung: The effect of salinity (0, lO and 20%o, water temperature 28 ± l oC) on food consumptionand growth of juvenile Nile tilapia, Oreochromis niloticus L. (9.94 ± 0.15 g) wereinvestigated by feeding group of 20 fish at 2% body weight day. Individual foodconsumption was measured using X-radiography. There were no significant differencesin growth or white muscle protein concentrations among groups. During feeddeprivation, weight loss was similar for fish held at O%o and 10 %o salinity, but after 7days over 50% of the fish maintained at 20%o salinity developed lesions covering 5-25%of the body. No significant relationships were observed between individual specificgrowth rates and food consumption rates within the groups. The fish in all salinitygroups showed a negative correlation between specific growth rate and food conversionratio. The coefficient of variation for wet weight specific food consumption and the meanshare of meal for each fish were used as a measure of social hierarchy strength. A negativecorrelation was observed between coefficient of variation in food consumption and meanshare of meal. The social hierarchy structure was similar in all salinities; 25% of the fishwere dominant (18.29% above an equal share of meal) and 30% were subordinate (16.19%below an equal share of meal) and the remainder 45% fish fed theoretical share of meal(MSM, 5.26%).
    Schlagwort(e): Fisheries ; Nile tilapia ; salinity ; food consumption ; growth
    Repository-Name: AquaDocs
    Materialart: article
    Format: application/pdf
    Format: application/pdf
    Format: 117-126
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Apparent absorption efficiencies of amino acids in rainbow trout, Oncorhynchus mykiss (Walbaum), fed diets containing bacterial single-cell protein (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Aquaculture nutrition 1 (1995), S. 0 
    Details
    ISSN: 1365-2095
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: The aim of the present study was to compare the apparent absorption efficiency of individual indispensable and dispensable amino acids in diets containing varying proportions of bacterial single cell protein (BSCP) and fishmeal when fed to rainbow trout, Oncorhynchus mykiss (Walbaum). Four diets were formulated to contain a total of 45.8% crude protein, of which 0% was from BSCP in diet 1 (BSCP-0), 25% in diet 2 (BSCP-25), 62.5% in diet 3 (BSCP-62.5) and 100% in diet 4 (BSCP-100); the remainder of the protein was from fishmeal. The four diets were isonitrogenous and had similar amino acid compositions. Duplicate groups of 25 fish were fed one of the four experimental diets at the rate of 20 g kg−1 body weight per day for 132 days. Apparent absorption efficiency was measured over a 45-day period during the growth trial. Results from two methods of faeces collection and two indicators of absorption efficiency were compared. The amino acid absorption efficiency of BSCP-100 was significantly lower (P 〈 0.05) when compared to the other three diets and absorption of some of indispensable amino acids was below the requirement level. The variation seen in individual amino acids absorption efficiencies between diets suggests that this parameter may be important in fish nutritional investigations.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2095.1995.tb00024.x
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