AVALIAÇÃO DO COEFICIENTE DE DIGESTIBILADE APARENTE DE ALIMENTOS ALTERNATIVOS COM ADIÇÃO DE PREBIÓTICO PARA TILÁPIA DO NILO (Oreochromis niloticus)

Abstract

Aimed to evaluate the apparent digestibility of nutrients and energy from the bran of the cactus pear (BCP) and annatto seed meal (ASM), divided in digestibility trial 1 and trial 2, with the addition of Prebiotics. For each test were made four diets with the following levels of inclusion 0.0; 0.04; 0.08 and 0.12 % and a reference diet, using 75 juveniles of Nile tilapia, sexually reverted with approximately 100,00g +/- 5g kept in incubators adapted to collect feces. The collection period was made for 15 days and the determination of apparent digestibility coefficients was made by the indirect method using indicators in diets. The physical and chemical parameters of water were maintained at adequate levels throughout the experiment. The addition of prebiotics in the diet improved the apparent digestibility of dry matter, crude protein and digestible energy. Among the tested levels, the 0.04% prebiotic provided the higher values.