Carcass and filleting yield in Cachama ( Colossoma macropomum )

The carcass and filleting yield of cultivated cachama ( Colossoma macropomum ) under intensive conditions were evaluated. The experiment was carried at the Fishing Resources Laboratory, Local Station "El Lago", Zulia state, Venezuela (CIAE-Zulia). 50 cachamas with weight of 750 ± 81.6g and total longitude total of 32.60 ± 1,5cm were used, using a randomized total design with three range of weight (600-700, 701-800 and 801-950 g). Total length (LT), standard length (LE), head length (LC), head height (AC), body thickness (ET); weigh fresh (PF), carcass weight (PC), body weight (PT), fi llet weigh (PFi), and residuals (R) were determined. According to the yield variables carcass yield (% RC); fi llet yield: (% RFi) and waste: (% R) were stimated. Not differences regard to the ET were observed (P>0.05). Significant differences among variables related with yield were observed (P>.05). Biggest % RC and % RFi according to the range of weight of 700-800 g (81.34 and 52.02 %, respectively) were obtenied.