Effects of replacing fish meal with poultry slaughter waste powder on growth performance, blood factors and carcass of Barbus grypus (Heckle, 1843) fingerlings

The purpose of this study was to evaluate different levels of substitution of poultry slaughter waste powder for fish meal in fingerlings shirbut diets. Four isonitrogenous and isocaloric diets (30.22±0.02% CP and 19.75±0.015 MJ kg-1 diet) were formulated. Treatments included control (no poultry slaughter waste powder) and diets 1, 2 and 3 with 50, 75 and 100% replacement of poultry slaughter waste powder, respectively, with fish meal. Each treatment consisted of three replicates with 50 shirbut (1.5±0.05 g) in 400 liter fiberglass tanks and 3% biomass fed 2 times (8 am and 16) ad libitum. The results showed that there was no significant difference in growth performance between different diets (p>0.05). There was no significant difference between treatments in apparent digestibility coefficient , blood biochemical composition and carcass composition (p>0.05). Therefore, it can be concluded that replacement of fish meal with poultry slaughter waste powder in the diets of fingerlings shirbut can be done without any negative effect.