中国畜牧兽医 ›› 2013, Vol. 40 ›› Issue (8): 60-63.

• 动物营养与饲料科学 • 上一篇    下一篇

乳化剂对肉鸡肠道菌群及免疫功能的影响

刘兆阳1, 王建平1, 刘宁2   

  1. 1. 河南科技大学, 河南洛阳 471003;
    2. 洛宁农本畜牧科技有限公司, 河南洛阳 471700
  • 收稿日期:2012-12-29 出版日期:2013-08-20 发布日期:2013-08-16
  • 通讯作者: 王建平
  • 作者简介:刘兆阳(1986- ),男,河南人,硕士,研究方向:动物营养。
  • 基金资助:

    农业部畜禽产品信息统计监测预警项目(2130111-02);河南科技大学博士基金资助。

Effect of Emulsifier on Intestinal Flora and Immune Function of Broilers

LIU Zhao-yang1, WANG Jian-ping1, LIU Ning2   

  1. 1. Henan University of Science and Technology, Luoyang 471003, China;
    2. Luoning Nongben Prologue Technology Co., Ltd., Luoyang 471700, China
  • Received:2012-12-29 Online:2013-08-20 Published:2013-08-16

摘要: 本试验旨在研究日粮中添加乳化剂对爱拔益加(AA)肉鸡肠道菌群、免疫器官指数及血清免疫球蛋白的影响。将640只1日龄AA肉鸡随机分为4组,每组8个重复,每个重复20只鸡。试验1组为正对照组,饲喂正常油脂水平日粮;试验2组为负对照组,日粮中油脂添加量降低0.5%;试验3组为乳化剂1,在低于正常水平油脂日粮中添加0.05%乳化剂1;试验4组为乳化剂2,在低于正常水平油脂日粮中添0.05%乳化剂2。在试验42 d时,采集血样、免疫器官和肠道食糜用于检测试验指标。结果表明,乳化剂显著降低了盲肠内的产气荚膜梭菌数量(P<0.05),但对大肠杆菌数量无显著影响(P>0.05);乳化剂可以显著提高脾脏指数和法氏囊指数(P<0.05),但对胸腺指数无显著影响(P>0.05);乳化剂对血清免疫球蛋白A(IgA)和M(IgM)有显著的提高作用(P<0.05),但对免疫球蛋白G(IgG)无显著影响(P>0.05)。提示,在肉鸡低油脂日粮中添加乳化剂可以改善肉鸡肠道菌群,增强免疫能力。

关键词: 乳化剂; 肉鸡; 肠道菌群数量; 免疫器官指数; 血清免疫球蛋白

Abstract: The purpose of this study was to investigate the effect of adding emulsifier on intestinal flora and immune function of broilers. A total of 640 1-day-old Arbor Acres (AA) broilers were randomly divided into four groups, 8 replicates each group, 20 chickens each replicate. Test group 1 for the positive control group,fed with the diet for normal fats horizontal, test group 2 for the negative control group, contained lipid less 0.5% than positive control, test group 3 fed with emulsifier 1, was below the normal level of lipid supplemented with 0.05% emulsifier 1, test group 4 fed with emulsifier 2, was below the normal level of lipid supplemented with 0.05% emulsifier 2. On day 42, the blood, immune organs and digesta in ileum and cecum of broilers were collected for detecting the targets. The results showed that the different emulsifiers deceased the number of Clostridium perfringens in cecum (P<0.05), but had effect on Escherichia coli (P>0.05). Emulsifiers increased the spleen index and bursa of Fabricius index, respectively (P<0.05), but not effect for thymus index (P>0.05), and emulsifiers also enhanced the serum levels of IgA and IgM of broilers (P<0.05).The results suggested that adding emulsifier in the lower lipid diet could improve the intestinal flora and immune function of broilers.

Key words: emulsifier; broilers; intestinal flora; immune organ index; serum immunoglobulin

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