黄芪多糖和益生菌对雏鸡免疫机能的影响  

Effects of Astragalus Polysaccharide and Profitable Microbe on Immunity of Chicklings

作　　者：李树鹏[1] 郝艳霜[1] 陈福星[1] 陈文英[1] 张庆茹[1] 赵献军 

机构地区：[1]河北农业大学中兽医学院,河北定州073000 [2]西北农林大学动物科技学院,陕西杨凌712100

出　　处：《粮食与饲料工业》2007年第2期33-34,42,共3页Cereal & Feed Industry

摘　　要：研究黄芪多糖和益生菌对雏鸡肠道组织形态学的影响。试鸡按体重随机分为4个组，1组为对照组，饲喂玉米-豆粕型基础饲粮；2～4组为试验组，饲粮是在基础日粮基础上分别添加黄芪多糖（220mg／kg）、益生菌剂（4×10^7cfu／g）以及“黄芪多糖（220mg／kg）＋益生菌剂（4×10^7cfu／g）”（合生元）。试验测定了ANAE阳性细胞率和血清红细胞免疫调节因子活性，结果发现合生元组雏鸡ANAE阳性细胞率均较对照组和黄芪多糖组提高显著（P〈0．05）；试验组雏鸡红细胞C3b受体花环促进率均较对照组提高显著（P〈0．05），红细胞C3b受体花环抑制率均降低，但仅42日龄时合生元组差异显著（P〈0．05）。结果表明，黄芪多糖和益生菌组成合生元，极大地增强了机体的细胞免疫功能，特别是T淋巴细胞的作用，显著增强了红细胞CR1的免疫活性，说明该合生元能协同作用，提高机体免疫水平。240 Hy-Line Chicklings were randomly divided into 4 groups with 6 replicates （10 Chicklings per replicate） to study the effects of Astragalus polysaccharide （APS） and profitable microbe （PM） on morphology of intestinal tracts of chicldings. The experiment lasted 6 weeks and the chicklings ingested feed and drank water freely, Group 1 was control group and groups 2, 3 and 4 were experiment groups, which were fed on the basic diet with additives of 220 mg/kg APS, 4×10^7 cfu/g PM and 220 mg/kg APS ＋ 4×10^7cfu/g PM. The activity of ANAE ＋ of T-lymphocyte and erythrocyte-mediated immune factor in serum was measured. The results showed： ANAE ＋ of APS ＋ PM group was both significantly more than that of APS and control group in 21 days and 42 days （P 〈 0.05）. RFER of all trial groups were significantly higher than that of the control （P 〈 0.05） and RFIR were decreased, especially significantly of the compounds group in 42 days （P 〈 0.05）. The results indicated that the synbiotics composed of APS and PM promoted significantly cell-mediated immunity activity, especially the action of T-lymphocyte increased CR1 immunological competence of erythrocyte. This indicated that this synbiotics could service a cooperative function and improve the immunity level.

关 键 词：合生元 黄芪多糖 益生菌 ANAE阳性细胞率 红细胞免疫 

分 类 号：S831.5[农业科学—畜牧学] S831.89[农业科学—畜牧兽医]