日粮添加β-甘露聚糖酶对断奶仔猪生长性能和免疫功能的影响  

Effects of β-mannase-oligosaccharide on growth performance and immune function of weaned piglet

作　　者：乔家运[1] 李海花[1] 高欣[1] 王文杰[1] 

机构地区：[1]天津市畜牧兽医研究所,天津西青300381

出　　处：《中国饲料》2014年第2期24-25,28,共3页China Feed

基　　金：国家科技支撑计划项目课题"新型饲料用酶制剂创制与应用"(2013BAD10B01)

摘　　要：为研究β-甘露聚糖酶对断奶仔猪生长性能和免疫功能的影响,本试验选择72头体重为(7.12±0.32)kg"杜×长×大"断奶仔猪,分为3个处理,每个处理4个重复,每个重复6头猪。对照组饲喂基础日粮,试验1组饲喂基础日粮+0.4%β-甘露聚糖酶,试验2组饲喂基础日粮+250 mg/kg 4%黄霉素。结果表明,与对照组相比,试验1组能显著提高断奶仔猪平均日增重3.52%(P<0.05),显著降低饲料增重比10.4%(P<0.05),各生长性能指标与试验2组无显著差异;与试验2组相比,试验1组断奶仔猪猪瘟抗体阻断率显著提高(P<0.05)。由此可见,日粮添加β-甘露聚糖酶有利于改善仔猪免疫功能,提高生长性能。The present study was conducted to investigate the effects of β-mannase on growth performance and im- mune function of weaned piglets.Seventy-two weaned piglets weighted （7.12± 0.32）kg were randomly divided into three groups with four replicates of six piglets each.The three groups were fed with basal diet,basal diet ＋ 0.4% β-mannase,and basal diet ＋ 250 mg/kg 4% flavomycin,respectively.The results showed that：compared with the basal diet group,β-mannase group significantly increased the average daily gain（ADG）（P 〈 0.05）,whereas decreased the feed to gain ratio（F/G）consid- erably （P 〈 0.05）.The difference of growth performance between β-mannase group and flavomycin group was insignificant. Compared with the flavomycin group, β-mannase could significantly increase the swine fever antibody blocking rate （P 〈 0.05）.The results indicated that β-mannase could improve immune function and growth performance of weaned piglets.

关 键 词：Β-甘露聚糖酶 断奶仔猪 生长性能 猪瘟抗体阻断率 

分 类 号：S816.7[农业科学—饲料科学]