Protein nutrition in fish. VI. Effects of dietary energy sources on the utilization of proteins by rainbow trout and carp.
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In rainbow trout, lipid was utilized more effectively than carbohydrate (α-starch and dextrin) as an energy source for utilization of dietary protein and carp utilized carbohydrate effectively as a energy source.Abstract:
The relationships between dietary energy sources and the utilization of dietary proteins have been investigated with rainbow trout and carp. In rainbow trout, lipid was utilized more effectively than carbohydrate (α-starch and dextrin) as an energy source for utilization of dietary protein. The values for PER and NPU of casein at low protein levels were markedly different according to the kind of energy sources used. Accordingly, the protein level producing the maximum growth rate also differed according to the main energy sources used. On the other hand, carp utilized carbohydrate effectively as an energy source.read more
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Journal ArticleDOI
Lipid nutrition in fish
TL;DR: Results of studies on the energy requirements of fish during recent years have indicated that in the carnivorous fish such as rainbow trout, eel, yellowtail and plaice which have limited ability to utilize carbohydrates of high mol, dietary lipids play an important role in this respect and have a sparing action on dietary protein.
Journal ArticleDOI
Strategies for further development of aquatic feeds.
TL;DR: A wholesome approach to culturing fish would be to use appropriate feeding standards that are aimed not only at improving economic returns but also at developing a lasting cohabitation of sustainable aquaculture and a cleaner environment.
Journal ArticleDOI
Protein and Amino Acid Requirements of Fishes
TL;DR: Much more work needs to be done on the effects of subtle differences in amino acid ratios in the diet, and major emphasis should be placed on the important role of the dispensable amino acids in fish nutrition.
Journal ArticleDOI
Dietary protein requirement of the red drum (Sciaenops ocellatus) and relative use of dietary carbohydrate and lipid
TL;DR: The data indicate that red drum require protein at approximately 40% of dry diet for maximum growth and that they utilize dietary lipid more efficiently than carbohydrate.
Journal ArticleDOI
Protein requirements of grass carp fry (Ctenopharyngodon idella Val.).
TL;DR: There was a linear relationship between the percentage of protein in the diet and the increase in fish protein and weight up to optimal levels of 41 and 43%, respectively.
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