In order to evaluate the performance, metabolism and body composition of jundiá (Rhamdia quelen) and common carp (Cyprinus carpio) juvenile fed with plant-energy sources, the experiment was conducted during 60 days. Three diets composed of husked oats, defatted rice bran stabilized (FADE) or wheat bran and corn (control diet) were provided three times daily to 360 jundiá juveniles (5.59±0.06g) or common carp (5.82±0.14g) distributed into 18 tanks (280L), totaling nine tanks per species. There were no significant differences in performance parameters in both species. For metabolic parameters, the lowest serum levels of total cholesterol in jundiá were observed in diets containing oats (214,49mg/dL) and FADE (216,3mg/dL), while for the common carp the lowest levels were observed in fish fed FADE (222,54mg/dL). As for the composition, the fat in the fillet was lower in the jundiá from control (3,76%) and oats (3,95%) treatments, providing the lowest body fat deposition in both species. The inclusion of oats showed lower body fat deposition in both species. It is concluded that the inclusion of 20% stabilized husked oats or defatted rice bran in the diet of jundiá and common carp juvenile does no harm to growth.
body composition; Cyprinus carpio; stabilized defatted rice bran; husked oats; Rhamdia quelen
