Four feeding trials were conducted to investigate the effects of using different levels of sumac on carcass traits, blood biochemical and immunity parameters of broilers. In this study that started 1 day following until 42 days, at first 375 one day old broiler chicks were divided to 5 groups and five replicates of 15 chicks each. Experimental groups included T1, control group with no cinnamon supplementation, T2,T3, T4,and T5 received 0.75%,1%, 1.5%, and 2% Sumac Powderrespectively. The results showed that the highest percent of breast, thigh and HDLwere observed in group5 and the lowest percent of abdominal fat and LDL was observed in group 4.The results evidence that the using of sumacin broiler feeds have significantly effects on performance, carcass traits and blood biochemical without having any significantly effects on immunity parameters.
