Abstract
Aim of this study was to investigate the effects of different levels of coriander seed powder (CSP; 0% as T1, 1.5% as T2 and 3.5% as T3) in modulating broiler chickens gut morphology. A total of 180 one-day-old broiler chicks were randomly allocated into 3 treatment groups 60 chick/group in 3 replicates. The trial was designed according to a completely randomized design for 45 days. The histomorphology of duodenum, jejunum and ileum [villus height (VH), villus width, crypt depth (CD) and villus height to crypt depth; VH:CD ratio] were investigated. The result showed a significant increase (P<0.01) of villus height in two treatments (1.5% and 3.5%) as compared to control in all segments. Moreover, the significant increase (P<0.01) on VH:CD ratio is observed between treatments as compared to control in ileum and dietary use of 3.5% CSP had significant effects on the jejunum and duodenum as compared to the control group. In conclusion, the application of CSP at 1.5% and 3.5% had a positive effect on villus height and VH:CD ratio of all segments. However, further research is required to understand the precise mechanisms underlying medicine plant effects as well as what the ideal percentage for each plant will be added for a best positive effect on performance.