Effect of different levels of Cinnamon Powder, with Antibiotic and Probiotic on Performance and Carcass characteristics of Broiler Chickens

This study was carried out to investigate the effects of different levels of cinnamon powder (CNP)، with antibiotic (Virginiamycin) and probiotic (Primalac) on performance and carcass characteristics in broiler chicks for 42 days using a completely randomized design. A total of 384 day-old male broiler chicks (Ross 308) were randomly assigned to 8 treatments، 4 replicates and 12 chicks per replicate. The experimental treatments consisted of: Basal diet (BD)، BD + 0. 1% CNP، BD + 0. 2% CNP، BD + 0. 3% CNP، BD + Primalac، BD + 0. 2% CNP + Primalac، BD + Virginiamycin and BD + 0. 2% CNP + Virginiamycin. In starter period there were significant differences among treatments for feed intake. No significant differences were observed in among groups other performance parameters. Adding 0. 1% and 0. 3% CNP in treatments 2 and 3 (T2،T3) significantly decreased abdominal fat pad weight at 42d of age. This study showed that inclusion of CNP in broiler diets had not remarkable effects on performance، but adding 0. 1% and 0. 3% CNP significantly decreased abdominal fat pad of broiler chicks.