木聚糖酶在肉鸡日粮中的应用效果研究  

Study on the Application Effects of Xylanase in the Diet of Broilers

作　　者：费卓群[1] 陈光[1] 

机构地区：[1]吉林农业大学,吉林长春130118

出　　处：《安徽农业科学》2012年第21期10898-10902,10913,共6页Journal of Anhui Agricultural Sciences

基　　金：吉林省科技发展计划项目(20100226)

摘　　要：[目的]探讨木聚糖酶在玉米-豆粕型日粮中的应用效果及其适宜添加量。[方法]研究在玉米-豆粕型日粮中添加木聚糖酶对肉鸡生长性能、代谢性能、血液指标和消化酶活力的影响,建立木聚糖酶与饲料利用率的定量关系。[结果]在玉米-豆粕型肉鸡日粮中添加800、1 200 U/kg木聚糖酶,能显著降低肉鸡料肉比,提高肉鸡对日粮的蛋白利用率,提高肉鸡前肠食糜中的淀粉酶、胰蛋白酶和脂肪酶活性。但是,添加木聚糖酶对肉鸡血液中葡萄糖含量无显著影响。玉米-豆粕型肉鸡日粮中木聚糖酶的适宜添加量为1 200U/kg。[结论]该研究可为木聚糖酶在肉鸡日粮中的进一步合理应用提供依据。[Objective] The research aimed to discuss the application effects of xylanase in the corn-soybean meal diet and its optimum supplementation quantity.[Method] The effects of supplementing xylanase in the corn-soybean meal diet on the growth performance,metabolism performance,blood indices,digestive enzyme activity of broilers were studied.The quantitative relationship between xylanase and feed utilization rate was established.[Result] Adding 800 and 1 200 U/kg xylanase in corn-soybean meal diet of broilers could significantly decrease the feed-gain ratio of broilers,enhance the protein utilization rate of broilers,increase the activities of amylase,trypsinase and lipase in the chime of broiler＇s foregut.But adding xylanase had no significant effect on glucose content in the blood of broilers.The optimum supplementation quantity of xylanase in the corn-soybean meal diet of broilers was 1 200 U/kg.[Conclusion] The research could provide basis for further and reasonable application of xylanase in the diet of broilers.

关 键 词：木聚糖酶 肉鸡 日粮 应用 

分 类 号：S831.92[农业科学—畜牧学]