甘露聚糖酶、α-半乳糖苷酶和木聚糖酶及地衣芽孢杆菌不同配伍组合对肉仔鸡生长性能及营养物质表观消化率的影响  

Effects of different combination of mannase, α-galactosidase and xylanase with Bacillus licheniformis on growth performance and nutrient digestibility in broiler chickens

作　　者：王苑[1] 梁陈冲[1] 于会民[1] 陈宝江[2] 王吉峰[1] 任冰[1] 

机构地区：[1]中国农业科学院饲料研究所生物饲料开发国家工程研究中心,北京100081 [2]河北农业大学动物科技学院,河北保定071000

出　　处：《饲料工业》2015年第2期18-21,共4页Feed Industry

基　　金：国家科技支撑计划项目课题"新型饲料用酶制剂的创制与应用[2013BAD10B01]";国家"948"计划项目"低碳氮排放的饲料高效利用技术引进与研发[2011-G7-7]"

摘　　要：试验主要研究甘露聚糖酶、α-半乳糖苷酶和木聚糖酶组合以及进一步与地衣芽孢杆菌配伍对肉仔鸡生产性能及营养物质消化率的影响。试验选用1日龄AA肉仔鸡1320只,随机分为3个处理,每处理设22个重复,每重复20只肉仔鸡,试验期42 d10处理Ⅰ组为对照组饲喂基础日粮;处理Ⅱ组在基础日粮中添加80 mg/kg甘露聚糖酶＋80 mg/kgα-半乳糖苷酶＋160 mg/kg木聚糖酶;处理Ⅲ组在处理Ⅱ组日粮中添加200 mg/kg地衣芽孢杆菌。试验结果表明：0-42 d,与处理Ⅰ组相比,处理Ⅱ组、处理Ⅲ组平均日采食量分别提高1.79%（P〈0.05）、2.67%（P〈0.05）,平均日增重分别提高2.65%（P〈0.05）、3.94%（P〈0.05）,料重比均呈下降趋势;与处理Ⅰ组相比较,处理Ⅱ组、处理Ⅲ组的干物质表观消化率分别提高8.93%（P〈0.05）、10.83%（P〈0.05）,能量表观消化率分别提高5.00%（P〈0.05）、7.80%（P〈0.05）,粗蛋白质表观消化率分别提高4.45%（P〈0.05）、6.49%（P〈0.05）。The purpose of this study was to evaluate the effects of complex enzyme（mannase, α-ga-lactosidase, xylanase）, alone or in combination with Bacillus licheniformis on performance and digest-ibility of broiler chickens. A total of 1 320 one-day-old AA broilers were allocated to 1 of 3 treat-ments, with 22 replicate pens per treatment and 20 birds per pen,in a randomized complete blockdesign from 1 to 42 d. The dietary treatments were designated as： basal diet alone [Group Ⅰ（Con-trol）]; basal diet ＋ complex enzyme（80 mg/kg mannase, 80 mg/kg α-galactosidase, 160 mg/kg xyla-nase）[Group Ⅱ]; basal diet＋complex enzyme＋200 mg/kg Bacillus licheniformis [Group Ⅲ]. The re-sults showed that the average daily feed intakeand average daily gain of Group II and GroupⅢ, were increased by 1.79% and 2.67%（P〈0.05）, 2.65% and 3.94%（P〈0.05）, respectively,when compared with Group Ⅰ. Feed to gain ra-tio（F/G） tended to decrease in the Group Ⅱand Group Ⅲ. Apparent digestibility of dry mat-ter, energy and crude protein in the Group Ⅱand Group Ⅲ were increased 8.93% and10.83%（P〈0.05）, 5.00% and 7.80%（P〈0.05）, 4.45% and 6.49%（P〈0.05）, respectively, when comparedwith the Group Ⅰ. Results indicated that complex enzymes and in combination with Bacillus licheni-formis supplementation in diets could improve the performance and apparent nutrient digestibility ofbroiler chickens.

关 键 词：酶制剂 地衣芽孢杆菌 肉仔鸡 生长性能 表观消化率 

分 类 号：Q55[生物学—生物化学]