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Effect of feeding different levels of sardine oil on growth, muscle composition and digestive enzyme activities of mahseer, Tor khudree


, : Effect of feeding different levels of sardine oil on growth, muscle composition and digestive enzyme activities of mahseer, Tor khudree. Aquaculture 115(1-2): 111-119

Sardine oil was incorporated at 3, 6, 9 and 12% into a fish-meal-based 40% protein diet and fed to mahseer fingerlings for 126 days at 5% body weight. Treated fish showed significantly higher growth than control, but did not differ among themselves. Muscle composition and RNA/DNA ratios reflected the growth trend. Feed efficiency was superior for fish fed the 6% oil diet. Dietary lipid influenced muscle fat content. Protease activity was found to be higher in the intestinal segments than in liver and pancreas in both control and treated fish. Oil incorporation at the highest level induced not only higher lipase production, but also higher protease secretion. The possible role of lipid in sparing protein for growth in mahseer is discussed.

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Accession: 002355680

DOI: 10.1016/0044-8486(93)90362-3

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