Asian Fisheries Society

Effect of Varying Protein and Lipid Levels on the Growth of Rohu, Labeo rohita

Abstract:

Rohu (Labeo rohita, Cyprinidae) fingerlings (7.5 g) were fed six experimental diets containing two protein levels (25 and 30%) and three lipid levels (4, 6 and 9%) for 98 d. The best growth was obtained with the diet containing 30% protein and 6% lipid. At a given protein/fat level, increase in fat/protein resulted in better weight gain, except in the diet having 30% protein and 9% lipid. Protein efficiency ratio and net protein retention decreased with increase in dietary protein. Muscle RNA/DNA reflected the growth trend Gut protease and lipase activity had a direct relationship with dietary protein. Dietary fat influenced carcass fat content, but dietary protein had no effect on carcass protein.

Publication Date : 1997-11-01

Volume : 10

Issue : 2

Page : 139-147

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Date 1997/11/01
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