Hybrid sorubim viscera protein concentrate in the diets for barred sorubim

Abstract

The current study evaluated the growth performance and the hematological profile of barred sorubim fed with levels of hybrid sorubim viscera protein concentrate (0.0; 5.0; 10.0 and 15.0%) in isoprotein and isoenergetic diets. Eighty fish with an average initial weight of 39.8 ± 0.28 g and an average initial length of 19.92 ± 0.25 cm were distributed in 16 aquaria of 60 L with recirculation system and temperature control during 35 days. The experimental design was completely randomized with four treatments and four replications. For the growth performance assay, the following variables were analyzed: weight gain (WG), feed consumption (FC), apparent feed conversion rate (AFCR) and protein efficiency rate (PER). Furthermore, the hemogram was assessed on the fish treated with levels of protein concentrate. It was observed no significant difference (P>0.05) for all the parameters evaluated. It was concluded that the protein concentrate from hybrid sorubim viscera can be included up to 15% in diets for barred sorubim juveniles without negative response on the performance and health.