Probiótico, prebiótico e simbiótico na nutrição de juvenis de carpa capim

Abstract

The aim of this study was to evaluate the performance of grass carp (Ctenopharyngodon idella) fed diets supplemented with different additives in the consumption of forage teosinte (Euchlaena mexicana). The experimental design was completely randomized with 4 treatments in triplicate being TCont: control diet; Tpre: prebiotic (soybean hulls: 5%/kg of diet); TPro: Probiotic (B. cereus and B. subtilis: 0.5%/kg of diet) and Tsyn: synbiotic (probiotic and prebiotic levels together). The diets formulated had 30% CP and 3000 kcal / DE / kg. The experimental period was 70 days in which fish were fed 3% BW feed and forage offered ad libitum. It were evaluated the growth performance parameters, aparent feed conversion, corporeal indices, chemical analysis of the boby and hematological parameters. Statistical analysis was performed with ANOVA P <0.05 and mean comparison test. The results may indicate that the addition of probiotic, prebiotic and synbiotic in the concentration used showed better forage intake compared to control, but not over the growth performance of animals. Also, the inclusion of additives provided lower body fat in animals.