木聚糖酶在肉鸡小麦型日粮中的作用机理

Mechanism of xylanase in broiler fed wheat-based diets

小麦作为主要能量作物之一在粮食工业中已得到广泛应用,其在饲料工业上的应用也越来越受到人们重视,但其含有的抗营养因子在一定程度上限制了其在饲料工业中的应用。小麦中主要的抗营养因子是阿拉伯木聚糖,而向小麦型基础日粮中添加木聚糖酶是消除其抗营养特性的有效办法。文中介绍了小麦型基础日粮中木聚糖的抗营养特性及其对肉鸡生产性能的负面影响,木聚糖酶的作用机理及在肉鸡小麦型日粮中添加木聚糖酶的作用效果,以期为小麦合理地应用于肉鸡日粮提供参考。

Wheat is widely used as one of the major dietary energy grains in food industry. Although feed industry uses more and more wheat, antinutritional factors contained in wheat restrict the application of wheat in feed industry. The major antinutritional factor in wheat is xylan. The supplementation of xylanase is considered to be an effective way to reduce the antinuritional factor in broiler fed wheat-based diets. Firstly, this paper introduced the antinutritional characteristics of xylans in wheat-based diets and the negative effect of xylans on performance of broilers. Then the paper discussed the mechanism of xylanase and the effect of adding xylanase on performance of broilers fed wheat-based diets, The objective of this paper is to provide scientific information to optimize the application of wheat in broilers.