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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (20): 54-57.

所属专题： 生物技术； 畜牧兽医

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

β-甘露聚糖酶对AA+鸡生产性能和免疫功能的影响

王书全   

  • 收稿日期:2011-03-25 修回日期:2011-04-21 出版日期:2011-08-15 发布日期:2011-08-15

The Effect ofβ-mannanase on Growth Performance and Immunity Function of AA+Chicken

  • Received:2011-03-25 Revised:2011-04-21 Online:2011-08-15 Published:2011-08-15

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摘要：

为了探讨日粮中添加β-甘露聚糖酶对AA+鸡生产性能和免疫功能的影响，选取1日龄健康的AA+肉鸡180羽，随机为2个处理组，每个处理3个重复，每个重复30只。试验分为对照组(基础日粮)和试验组（基础日粮+ 400g/Tβ-甘露聚糖酶），试验期42天。结果表明β-甘露聚糖酶能不同程度的提高AA鸡各生长阶段的日增重和饲料转化率，但差异显著（P>0.05），明显提高42d血液中免疫球蛋白IgM、IgG、IgA的含量，差异显著。21d、42d的免疫器官指数、T淋巴细胞转化率和ND抗体水平也有不同程度的提高，与对照组相比，差异不显著（P>0.05）。说明β-甘露聚糖酶能提高肉用鹌鹑生长性能和增强免疫的功能。

关键词: 扫描电镜, 扫描电镜

Abstract:

In order to study the effects of dietaryβ-mannanase on the growth performance and immunity function of AA+ chicken, one hundred and eighty one-day-old AA+ chicken were randomly divided into control group and treatment group, each group had 3 replicates and 30 AA+ chicken in each replicate. Control group was fed with basal diet，treatment group was fed with basal diet supplemented 0.04% β-mannanase. The experiment period is 42 days. The results showed that β-mannanase could increase significantly average daily gain，and feed conversion rate(FCR). there were significant differences between treatment and control groups (P<0.05) in 1-21d and 1-42d; enhance significantly the levels of immunoglobulin M (IgM), IgA, and IgG in viremic blood(P<0.05). Immune organ indexes, antibody level against ND and T lymphocyte transformation rate had different degrees of improvement，but no significant difference(P>0.05) between control group and treatment group. The results indicated that β-mannanase could improve respectively the growth performance. and immunity function of AA+ chicken.