The effect of different feeding levels (viz., 1%, 3%, 5%, 7%, 9% and 11% of body weight) on the growth and food conversion ratio of Tor putitora at fry and fingerling stage was investigated for a period of 60 days to determine optimum feeding rate in laboratory conditions. The result of the experiments indicate that the fry obtained the highest average final weight with 9% feeding level, followed by 11%, 7%, 5%, 3% and 1%. There was insignificant difference (P>0.001) in final weight gain between 9% and 11% feeding level. The fingerlings obtained highest average final weight with 5% feeding level, followed by 7%, 9%, 3% and 1%. There was insignificant difference (P>0.001) in final weight gain between 5% and 7% and 7% and 9% feeding levels. Specific growth rate (SGR) and food conversion ratio (FCR) were better at 9% and 11% feeding level in fry stage. Similarly, specific growth rate (SGR) and food conversion ratio (FCR) obtained at 5%, 7% and 9% in fingerlings were better in comparison to 1% and 3% feeding level. The results of the study suggest that feeding a diet to fry at 9% and 5% body weight to fingerlings would be optimal for growth with less wastage of food and better economic returns in Tor putitora culture.
Effect of feeding levels on the growth of tor putitora at fry and fingerling stage
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