The effects of larger fish and size grading on growth performance of Asian cat fish (pangasianodon hypophthalmus) at floating cages

Young Asian catfish (Pangasianodon hypophthalmus) have been cultured for 60 days feeding period in floating cages in Seyhan Dam Lake Adana. Fish were graded as a triplicate group. Research trails were established as 100% small group (B), 50% small + 50% large fish (group K1), 75%small + 25%large fish (group K2). At the end of the study best growth rate was obtained from group B (171,26g), and the other groups (K1 and K2) were 159,92 g and 151,17 g. respectively. As a conclusion, the growth of young Asian catfish (30 g) was positively affected by size grading application in cage culture conditions.