Effects of Different form of Manganese Supplementation on Performance, carcass traits and Some Blood and immunity Parameters of Broilers Reared under Summer Temperature Conditions

A total number of 176 one-day-old male broiler chicks (Ross 308) were used for 49-d period to investigate the effect of different form of Manganese Supplementation in the corn-soybean meal based diet on performance, carcass traits, hematology, blood biochemistry and intestine histology of Broilers Reared under Summer Temperature Conditions. This experiment was conducted in a completely randomized design with 4 treatment and 4 replicates (11 birds) in each treatment. Treatments consisted of control group and three form of manganese supplementation (mineral, Organic and mix of mineral (50%) and organic (50%) form). The results showed that the addition of 100 ppm organic Mn in compared to control or mineral Mn groups increased body weight at 42d and 49-d. Feed efficiency was improved with organic Mn supplementation in compared to control group. However, all carcass traits were not affected by dietary Mn supplementation. The effect of different form of Mn supplementation on number of erythrocyte and leukocyte were not significant (P>0.05). Moreover, the shank and leg traits especially shank ash and Mn was significantly increased when organic form of Mn supplemented to control diet during summer condition. According to the results of current study, the addition of 100 ppm organic form to basal level could improve performance traits such as FCR, BW and had beneficial effect on bone traits in male Broilers Reared under Summer Temperature Conditions.