The Project aims to search for ingredients that replace or, at least, reduce the amount of fish meal used in the tambaqui ration produced in captivity. In this project, the feasibility of using fish residues (in the production of silage) and vegetable residues (buriti, cassava and pineapple) in the manufacture of feeds will be evaluated through the health condition and zootechnical parameters and performance of tambaquis (Colossoma macropomum). The results obtained may make it possible to reduce costs and increase fish productivity and, therefore, the profit of fish farmers, allowing the sustainability of the aquaculture enterprise and the environment.