Effect of Poultry by Product Meal on Performance Parameters, Serum Uric Acid Concentration and Carcass Characteristics

This experiment was conducted to determine the chemical composition and gross energy of poultry by product meal (PBPM) and the effects of different levels of inclusion of poultry by product meal on broiler chicken performance, serum uric acid and carcass characteristics. Three samples of PBPM produced in Ardabil province located in northwest of Iran, were provided during one month sampling period from ren-dering units of industrial poultry slaughter-houses. About 210 U of industrial poultry slaughter-houses are located in Iran. The proximate analysis showed that the average dry matter (DM), crude protein (CP), ether extract (EE), Ash, calcium (Ca), phosphorus (P), total volatile nitrogen (TVN) and gross energy (GE) of the PBPM samples were 92.00%, 69.63%, 16.53%, 7.86%, 1.30%, 0.56%, 209 mg/100g and 4096.6 kcal/kg respectively. In this experiment 120 eleven days old Ross 308 male broiler chicks were used for feed evaluation of poultry by product meal in four levels of 0 (control), 30, 60 and 90 g/kg in whole diet for the periods of grower (11-32 d) and finisher (33-46 d) period in completely randomized design with 4 treat-ments and 3 replicates. The results showed that feed intake in all stages, body weight gain in finisher phase and overall period, mortality percentage and live weight at 46 d were similar between diets. While body weight gain in grower phase, feed conversion ratio in grower, finisher phase and overall period (11-46 d) of experiment and live weight at 32 d were statistically different (P < 0.05). Therefore under the conditions of this study, use of 60 g/kg of poultry by product meal in diet might be more useful and practical in broiler diets.