Use of Beef Tallow as an Energy Source in Coho Salmon (Oncorhynchus kisutch) Rations

Autor: T. C. Yu, R. O. Sinnhuber
Rok vydání: 1981
Předmět:
Zdroj: Canadian Journal of Fisheries and Aquatic Sciences. 38:367-370
ISSN: 1205-7533
0706-652X
DOI: 10.1139/f81-049
Popis: Four experimental diets containing different proportions of beef tallow and salmon oil were prepared. Each diet was fed to triplicate groups of juvenile coho salmon (Oncorhynchus kisutch) for 14 wk. The final fish weight was greatest with a diet containing 8% each of tallow and salmon oil. Fatty acid analysis indicated that the dietary salmon oil provided adequate quantities of the ω3 fatty acids required by the coho salmon. Fish body lipid saturation increased only slightly as the concentration of tallow in the diet increased. Beef tallow was found to be a good source of dietary energy when used in conjunction with a fish oil rich in ω3 fatty acids.Key words: beef tallow as source of dietary energy, coho salmon (Oncorhynchus kisutch), growth, feed efficiency, body lipid composition
Databáze: OpenAIRE