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

Abstract

Introduction: The purpose of this study was to evaluate different levels of
substitution of poultry slaughter waste powder for fish meal in fingerlings shirbut
diets.
Materials & Methods: 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.
Results: 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).
Conclusion: 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.