微生态制剂对雏鸡生长性能、免疫功能及肠道黏膜的影响

Effect of probiotic on growth performance,immune function and intestinal mucosa in chicken

本试验旨在研究微生态制剂对雏鸡生长性能、免疫功能及肠道黏膜的影响。试验选用200只1日龄雏鸡随机分为2组,分别为试验组和对照组,每组2个重复。试验组于基础日粮中添加1.0%微生态制剂,对照组不作处理,试验期间检测各组试验鸡的生长性能、肠道黏膜和免疫性能。结果表明:试验组平均体质量比对照组提高了9%(P<0.05);25日龄,试验组法氏囊指数、胸腺指数较对照组分别提高了10.44%,36.56%(P<0.05),35日龄,试验组法氏囊指数和脾脏指数分别提高了40.12%(P<0.05)和19.30%(P<0.05),胸腺指数略低,但差异不显著(P>0.05);试验组的小肠肠壁与肠黏膜较厚,肠绒毛较长较粗,排列较整齐。以上结果表明微生态制剂对雏鸡具有增加体质量、提高免疫力和促进肠道生长发育的作用。

This experiment was conducted to study the effects of probiotics on growth performance, immune function and intestinal mucosa in chicken. Two hundred one-day-old chickens were divided into 2 groups （experimental group and control group） with two replicates. The experimental group was received the basal feed with 1.0 % probiotic, and control group fed on the basal feed. Growth performance,immune function and intestinal mucosa of chicken were detected during the experi- ment. The results showed that the average weight of experimental group was increased by 9% compared to control group （P 〈0. 05）. The Fabrice＇s index and thymus index of experimental group were increased by 10. 44 %, 36. 56 % （P 〈 0. 05）, at 25 days separately. Fabrice＇ s index, spleen index increased by 40.12% ,19.30% ,at 35 days（P〈0.05） separately. The intestinal wall and the intestinal mucosa of small intestine in experimental group were thicker than those of con- trol group, intestinal villus in experimental group were longer and thicker than control group. These results suggest that probiotics could increase body weight and immunity, and promote the growth of gut in chicken.