Impact of poly culture on some productive traits of two species of carp fish (common carp Cyprinus carpio L. with grass carp Ctenopharyngodon idella reared in floating cages
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Abstract
This study was conducted to determine the effect of rearing common carp Cyprinus carpio L. with grass carp Ctenopharyngodon idella, as a poly culture on some productive traits, were reared according to the floating cage system. Three treatments were used; T1: 20 common carp fish were used, T2: 20 grass carp fish were used, T3: 10 common carp fish and 10 grass carp fish were used. By 6 floating cages of 4 m3 in size, made of galvanized iron, were prepared.The best productive traits were in T3, in which common carp and grass carp were put in poly culture . We conclude from this study that the poly culture of common carp with grass carp achieves the best production traits.
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