تاثير استفاده از پودر بقاياي كشتارگاهي طيور در تغذيه جوجه هاي گوشتي

Effect of using poultry by-product meal in broiler feeding

This study was performed to evaluate using different levels of poultry by-product meal (PBPM) in broiler feed. A trial was designed with 228 Arian,s commercial broiler chicks in the same weight and using Completed Randomized Design with 4 treatments and 3 replacements. Number of chicks per every pen were 19 and age of them were 7 days at the beginning of trial, Experimental diets contained U , 2 , 4 or 6 % of PBPM. The levels of energy, protein and other nutrients were the same between of diets and controled by breeding catalogue. Water and food were fed adlibitum. Two chicks were selected and slaughtered for the carcass characteristics at the end of trial. Traits that considered were: Weekly gain and feed intake, feed convertion, final weight, mortality and carcass characteristics. Data were tabulated and analysed by SAS program, then statistical parameters and differences were estimated. So treatment means were compared by Duncanʹs Multiple Range Test, According to the results, overal feed intake and gain were significant between all of treatments (p(0.05), but other traits such as feed convertion, mortality percentage and carcass traits were not significant (p>0.05). As a finally result, using 6% of PBPM in diets decreased feed intake and feed costs, also promoted feed conversion and gain. Cost per 1 kg of live weight for all of treatments were calculated. According to the results level of 6% PBPM was the best and has the lowest cost (3446 Rials), and control group has the highest cost (3954 Rials). Levels of 4 and 2 % PBPM (respectively with 3526 and 3671 Rials) were moderate.