Abstract
Abstract The present study was undertaken to evaluate the use of roasted coffee powder (RCP; Coffea arabica ) in practical diets for common carp, Cyprinus carpio L. to improve their growth, biochemical status, and resistance against Zn toxicity. However, RCP was added to the ingredients of tested diets to represent 0.0 (control), 0.50, 1.0, 2.0, or 5.0 g/kg diet. Fish (10.2 ± 0.42 g) were distributed into various treatments at a rate of 20 fish per 100-L aquarium and fed one of the experimental diets for 10 weeks in triplicates. After the feeding trial, fish from each treatment were further-exposed to 5.0 mg Zn/L for 7 days. It is noticed that final fish performance was not significantly ( P
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