Fillet and carcass yield and fillet chemical composition of piava from fish farming and from the wild

Abstract

Piava (Leporinus obtusidens) is one of the main cultivated native fish and one of the most caught in Rio Grande do Sul, Southern Brazil. The objective of this work was to compare the carcass and fillet yields of piava, females and males, collected from the wild (Treatment 1 - T1) and from fish culture (Treatment 2 - T2) and to analyze the chemical composition of fillets. For this purpose, four females and four males of each treatment were used. T1 females presented significant higher values (P<0.05) in the carcass yield. Chemical analyses of the fillet indicated that fish originating from fish farming, independent of sex, showed higher values (P<0.05) for protein and ash contents. Thus, the management and the suitable food in fish farming could contribute to the production of a better quality fish.