Interactions of feeding rates on growth,food conversion and body composition of the freshwater catfish Mystus vittatus (Bloch) |
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Authors: | S Arunachalam S Ravichandra Reddy |
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Institution: | (1) Department of Zoology, Bangalore University, 560001 Bangalore;(2) Present address: Nr. 457, 14th Cross Road Wilson Garden, Audugodi post, 560030 Bangalore, India |
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Abstract: | Food intake, growth, conversion efficiency and body composition of the non-air breathing catfish Mystus vittatus (Bloch) were studied in relation to different feeding levels. Fish weighing 817.9 ± 104.00 mg was found to consume a maximum of 156.0 mg live Tubifex worm/g day-1. Geometrically derived feeding rates of 6.75, 23.00 and 26.00 mg dry food/g live fish day-1 represent the maintenance, optimum and maximum levels respectively. The SDA increased from 6.75 mg/g day-1 at maintenance to 13.50 mg/g day-1 at maximum feeding rate. Starvation brougt about increase in body water content, while there was concomitant decrease in fat and crude protein. |
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Keywords: | catfish feeding rates growth body composition |
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