大蒜素对肉鸡生产性能和消化酶活性的影响

Effect of Allicin on Performance and Digestive Enzyme Activity in Broilers

135只1日龄AA鸡随机分成A、B、C3组,每组设3个重复,每个重复15只。A为空白对照组,饲喂基础日粮,B为抗生素组,在基础日粮中添加50 mg/kg洛克沙生和750 mg/kg10%金霉素,C为试验组,在基础日粮中添加160mg/kg25%大蒜素,以研究大蒜素对肉鸡生产性能和十二指肠消化酶活性的影响。试验结果表明,A、B、C 3组肉鸡平均体重和平均日增重差异不显著(P>0.05),与A组相比,42日龄时C组料重比差异显著(P<0.05)。在21日龄和42日龄时,C组淀粉酶活性较A组提高了122.87%(P<0.01)和40.50%(P<0.01),脂肪酶活性较A组提高了89.98%(P>0.05)和33.33%(P>0.05),总蛋白酶活性较A组提高了10.29%%(P>0.05)和1.7%(P>0.05)。本结果提示在肉鸡饲料中添加大蒜素能够提高饲料效率和肠道淀粉酶活性。

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 （ P 〉0.05 ） ; compared with the group A, F/G was significantly decreased in the groupC at 42 day -old（ P 〈0.05）. In contrast to group A, the amylase activity in the duodenum was obviously improved by 122.87% and 40.50% （P 〈0.01 ） in group C at 21 and 42 day -old respectively, but lipase and total proteinase activity weren＇t obvi- ously improved in group C at 21 and 42 day - old （ P 〉 0.05 ）. It is suggested that allicin should improve FCR and amylase lactivity of the duodenum in broilers.