Níveis de levedura desidratada "spray-dried" na dieta de alevinos revertidos de tilápia do Nilo (Oreochromis niloticus L.)

one hundred and two thousand reversed of nile tilápia fingerlings (oreochromis niloticus) with initial weight mean 0.13 ± 0.01 g, distributed in twenty 1000-liter fish aquarium, were used to evaluate the inclusion of dried yeast in the diet. samples were distributed in a entirely randomized design with five treatments (0.00; 7.80; 15.60; 23.40 and 31.20% yeast in the diet) andfour replicates. there was no effect of treatments on food conversion and survival. a quadratic effect over weight gam (y=1.7133+0.0477x- 0.0017x2) and cost of diet/kg gain (y=0.6170-0.0112x+0.0004x2) was observed. it was concluded the best level of dried yeast in diet for reversed nile tilapia fingerlings is 14%.