The determining nutritive value of remainig material in acid Citric production on broiler nutrition.

In order to study the nutritive value of Citric Acid production residue(CAPR) and the effect using it on broiler chicken performance this experiment was conducted in completely randomized Desing with 5 treatment(0,2.5, 5, 7.5, 10 percent of CAPR) in 6 replicate and 14 broiler chicks (male and female) in each replicate with Arian strain at 7-49 days. For diet formolating, at first, metabolism energy of CAPR were determined with Sibbald method and experimental Isonitrogenous and Isocoloric diets were prepared. In this experiment Average Feed Intake (FI), Average Weight Gain (WG), Average Feed Conversion Ratio (FCR) were evaluated every week and Mortality Percentage, expense of Feed Consumption for one Kg body Weight and Production Index(PI) were studied in total period. The result showed that maximum feed intake in total period was related to treatment of 7.5% CAPR and minimum was related to 2.5% CAPR and control diet. At 49 days old age of 3 pieces each experiment based on the average weight of each test and slaughter and carcass percent of its components (thighs, Breast, neck and wings, abdominal fat, spleen, Thymus and bursa of fabricius) were studied. Such a percentage of protein, fat, ash and moisture lkhm Thigsh and breast meat were investigated. The effect of different treatment on average of weight gain was significant in grower and finisher period (P ). In total period, the maximum average of weight gain was related to treatment of 5% CAPR and minimum average for treatment of 10% CAPR. In concern to feed conversion ratio, the difference between treatments was significant just in 1-21 days (P ). In total period, the maximum feed conversion ratio was related to treatment of 10% CAPR and minimum was related to the treatment of 2.5% CAPR and control diet too. There aren't any significant differences between treatments about mortality percentage. In total period, the maximum average of production index was related to control and the minimum amount of that was related to the treatment of 10% CAPR (P ). Expense of feed intake for each Kg of body weight between different treatments was significant (P ). In total period, the maximum average of feed expense was related to the treatment of 10% CAPR and minimum average of feed expense was related to control treatment. Between treatment components and the carcass of the comments at the end of testing there was no significant difference (P ). But averages between protein dry matter breast and thigh difference was significant, the highest average protein matter dry breast and thigh, respectively, the assembly 10 and 2.5 percent citric acid residue protein and the least thigh and breast to dry matter order to control assembly and the remaining 10 percent of citric acid. Based on obtained results, level of 5% CAPR is suitable for using in broiler chick diets.