Effect of Allicin on Performance and Digestive Enzyme Activity in Broilers

To study the effects of allicin on performance and digestive enzyme activity of broiler chicken,135 one day-old AA broilers were randomly divided into three groups,with three replicates in each group,and 15 birds in each replicate.Group A was the control group,which was fed with basic diet.Group B was antibiotic group,which was fed with basic diet added by 50mg/kg roxarsone and 750mg/kg 10% chlortetracycline.Group C was experimental group,which was fed with basic diet added by 160 mg/kg 25% allicin.The results showed the difference wasn′t significant in the average body weight and the average daily gain among the three groups(P0.05);compared with the group A,F/G was significantly decreased in the groupC at 42 day-old(P0.05).In contrast to group A,the amylase activity in the duodenum was obviously improved by 122.87% and 40.50%(P0.01) in group C at 21 and 42 day-old respectively,but lipase and total proteinase activity weren′t obviously improved in group C at 21 and 42 day-old(P0.05).It is suggested that allicin should improve FCR and amylase activity of the duodenum in broilers.