Effect of dietary protein level and copper supplementation in performance of common carp fish C. carpio L [electronic resource].

Includes references.

A total number of 180 common carp fry with an average initial weight of 2.5 g were divided into nine experimental groups, 20 fish each. Three protein levels (20.6, 25.7 and 31.5%) within each copper level (0, 50 and 100 mg copper/kg diet) were tested. Fish were individually weighed to the nearest 0.1 gm at the beginning of the experiment and biweekly intervals throughout the experimental period. Live body weight and daily weight gain of common carp fish increased significantly (P<0.01) as affected with increasing dietary protein level. Also, body weight of common carp increased significantly (P<0.01) as affected with copper supplementation to the diets. Average daily weight gain increased by 11.49 and 20.69%, respectively, in fish fed diets supplemented with 50 and 100 mg copper than those fed diets without copper supplementation.

Summary in Arabic.

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