不同的复合酶制剂对奶牛生产性能和营养物质消化率的影响  

Effects of different compound enzyme preparations on production performance and nutrient digestibility of Holstein cows

作　　者：徐学文[1,2] 刘正亚[1] 田雯[1] 任莹[1,2] 赵胜军[1,2] 周樱 

机构地区：[1]教育部农副产品蛋白质饲料资源工程研究中心,湖北武汉430023 [2]武汉工业学院动物科学与营养工程学院,湖北武汉430023 [3]武汉新华扬生物股份有限公司,湖北武汉430074

出　　处：《粮食与饲料工业》2012年第11期51-54,共4页Cereal & Feed Industry

摘　　要：研究不同组合复合酶制剂对奶牛生产性能和营养物质消化率的影响。对照组饲喂基础日粮为全混合日粮,精、粗料比4∶6,试验组按精料量的0.1%添加不同组合的复合酶制剂。结果表明:在奶牛日粮中添加复合酶制剂能够提高奶牛日粮的干物质和粗蛋白质消化率。复合酶制剂以木聚糖酶10 000U/g、葡聚糖酶2 500U/g和纤维素酶30 000U/g组合效果较佳。The aim was to study the effects of different compound enzyme preparations to Holstein cows production performance and nutrient digestibility. The Gontrol group was fed with hasial diet for the total mixed ration （ratio of concentrate to roughage forage= 4 ： 6）, and the experiment group were fed different compound enzyme preparations of 0.1% according to the feed volume. The results indicated that compound enzymes added to the concentrate of TMR could increase crude protein and dry matter digestibility of cows. The optimum compound enzyme preparation was as that： xylanase of 10 000 U/g, glucanase of 2 500 U/g and cellulase of 30 000 U/g.

关 键 词：复合酶制剂 生产性能 营养物质消化率 奶牛 

分 类 号：S823.5[农业科学—畜牧学]