Rearing performance of Clarias batrachus larvae: Effect of age at stocking on growth and survival during fingerling production |
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| Authors: | SK Sahoo SS Giri S Chandra |
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| Institution: | aCentral Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar-751 002, India |
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| Abstract: | An experiment was conducted to evaluate the rearing performance of different larval stages for optimum growth and survival during fingerling production of Clarias batrachus with an aim to reduce the rearing time of the catfish larvae in a hatchery system. The larvae were reared for 5, 10 and 15 days before stocking them in the nursery tanks. No significant (P < 0.05) difference could be found in length increment at the end of first week of rearing. But the total length was reduced during rest three weeks in five days old larvae compared to that of other two higher age groups. In 5 days old larvae the reduced weight (P < 0.05) was observed during the entire rearing period. However, the specific growth rate (SGR) did not vary among the groups. The survival rate as well as total biomass was decreased while stocking five days old larvae for rearing, compared to that of other two age groups. |
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| Keywords: | Clarias batrachus Larvae Growth Survival |
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