Growth response of Catla catla (Actinopterygii: Cypriniformes: Cyprinidae) to soya and maize supplemented traditional feed mixture
2011
Priyadarshini, M. | Manissery, J.K. | Gangadhara, B. | Rao, L.M. | Keshavanath, P.,Animal and Fisheries Sciences University, Mangalore (India). Department of Aquaculture
In Indian carp culture, a 1 : 1 mixture of rice bran and oil cake is traditionally used as feed in powder form. With a view to improve its nutritional quality and reduce the wastage, the mixture was supplemented with soya and maize flours and converted into pellet form. The performance of the supplemented diets was evaluated by feeding them to catla, Catla catla, one of the popular Indian major carps. Two test diets were formulated supplementing the feed mixture with soya flour (10 and 20 percentage) and maize flour (39 percentage), replacing equal quantities of rice bran and oilcake. These diets along with the control diet were fed to triplicate groups of catla fry maintained in outdoor cement tanks for 120 days. The test diets enhanced growth and net fish production significantly. Digestive enzyme activity was affected positively by the test diets. Replacing rice bran and oilcake from the traditional feed mixture with soya and maize flours proved economically viable
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