Author(s): Elcimar da S Sousa, Jessica S da Silva, Fabio H de MH Cavalcanti, Iurych NB Bussons and Márcia RF Machado

Abstract: The present work was aimed to evaluate the growth parameters for Brycon amazonicus fingerlings subjected to diets with different levels partial replacements of fish meal by biological silage. The experiment was conducted in the Laboratory of the Production of Aquatic Organisms at the Nilton Lins University, during 60 days, 240 fingerlings were used with average initial weight 3.77 ± 0.40 g and average initial length 8.39 ± 0.42 cm, distributed in 12 water tanks of 310 L-1 polyethylene. Four experimental diets (0, 10%, 20% and 30%) partial replacement of fish meal by biological silage of fish. The results of weight gain and protein efficiency ratio showed a positive linear regression (p<0.01) for the feed with 10% of partial replacement of fish meal by biological silage. It is concluded that fish meal can be replaced partially to 10% by biological silage, favoring the good performance of the fish.

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