بررسي اثر باكتري هاي حل كننده فسفات به عنوان پروبيوتيك جديد روي برخي پارامترهاي بيوشيميايي سرم، خصوصيات لاشه و عملكرد جوجه هاي گوشتي

The effect of phosphate solublizing bacteria as a novel probiotic on some biochemical parameters, carcass characteristics and performance of broiler chicks

In this study, the effect of Pseudomonas Putida and Pantoa Agglomerans which belong to phosphate solublizing bacteria was investigated as a probiotic on serum concentrations of phosphorous and alkaline phosphatase, some carcass characteristics and performance of broiler chicks. These bacteria, which were isolated with screening soil samples collected from various regions of Iran, were mixed with the diet. The experiment was conducted on a completely randomized design and a 2><4 factorial arrangement. The factors consisted of 4 probiotic levels (1-no probiotic use, 2-probiotic use through out rearing, 3- probiotic use at the start of rearing and during growth period, 4-probiotic use at the end of the rearing period) and 2 phosphorus levels (1-available, 2-total). In this experiment, 8 treatments, 4 replicates with 20 chicks at each replicate and a total of 640 day old chicks of ROSS strain were used. Comparison of means indicated that the probiotic had significantly increased body weight, feed intake and feed conversion ratio (P<0.05). The novel probiotic had increased carcass yield and serum phosphorus (P<0.05). On the other hand, a significant decreased abdominal fat and serum alkaline phosphatase was observed (p>0.05). Also there was no significant effect on breast and thigh weight (p<0.05). The Results of this study indicated that the employed bacteria increase the performance and bioavailability of phosphorous.