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42d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。
The purpose of this study was to investigate the effect of adding emulsifier on intestinal flora and immune func- tion 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 nor- mal level of lipid supplemented with 0.05% emulsifier 2. On day 42, the blood, immune organs and digesta in ileum and ce- cum 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^O. 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 emulsifi- ers 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.
出处
《中国畜牧兽医》
CAS
北大核心
2013年第8期60-63,共4页
China Animal Husbandry & Veterinary Medicine
基金
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
