湖北农业科学 ›› 2021, Vol. 60 ›› Issue (17): 93-97.doi: 10.14088/j.cnki.issn0439-8114.2021.17.020

• 畜牧·兽医 • 上一篇    下一篇

丁酸梭菌CB1制剂对肉鸡生产性能、肠道形态和菌群的影响

何菊1, 李筱雯2, 崔卫涛2, 郭杰1, 王纯1, 肖运才1, 李自力1, 周祖涛1   

  1. 1.华中农业大学动物医学院/湖北省预防兽医学重点实验室,武汉 430070;
    2.湖北华大瑞尔科技有限公司/生物发酵饲料湖北省工程研究中心,武汉 430070
  • 收稿日期:2020-12-07 出版日期:2021-09-10 发布日期:2021-09-30
  • 通讯作者: 周祖涛(1980-),男,副教授,博士,主要从事兽医微生物与免疫学的研究工作,(电话)13114373570(电子信箱)ztzhou@mail.hzau.edu.cn。
  • 作者简介:何 菊(1990-),女,贵州六盘水人,硕士,主要从事兽医微生物与免疫学方向研究,(电话)15185048696(电子信箱)3354797775@qq.com
  • 基金资助:
    广西创新驱动发展专项(桂科AA18118051)

Effects of Clostridium butyricum CB1 preparations on production performance,intestinal morphology and microflora of broilers

HE Ju1, LI Xiao-wen2, CUI Wei-tao2, GUO Jie1, WANG Chun1, XIAO Yun-cai1, LI Zi-li1, ZHOU Zu-tao1   

  1. 1. College of Veterinary Medicine,Huazhong Agricultural University/Hubei Key Laboratory of Preventive Veterinary Medicine,Wuhan 430070,China;
    2. Hubei Huada Real Science &Technology Co. ,Ltd. /Hubei Engineering Research Center of Biofermentation Feed,Wuhan 430070,China;
  • Received:2020-12-07 Online:2021-09-10 Published:2021-09-30

摘要: 本研究旨在探讨丁酸梭菌CB1及其复合菌制剂对肉鸡生产性能、肠道形态和菌群结构的影响。选取1日龄Cobb500肉鸡15 000只,随机分为5组,每组3个重复,每个重复1 000只,分别饲喂:A组为基础日粮、B组含有50 g/t金霉素的日粮、C1、C2和D组分别在基础日粮中添加100 g/t丁酸梭菌CB1制剂、200 g/t丁酸梭菌CB1制剂、200 g/t丁酸梭菌CB1制剂复合菌制剂,试验期为42 d。试验结果表明,C1、C2和D组1~21 d平均日增重高于B组(P<0.05或P<0.01),D组1~42 d平均日增重与B组相当(P>0.05),C2组和D组的料肉比、死亡率均明显低于A组和B组,D组盲肠绒毛高度和VH/CD值最高。在日粮中添加丁酸梭菌CB1制剂对肉鸡回肠、盲肠乳酸杆菌和双歧杆菌的增殖有显著促进作用。由此可见,丁酸梭菌CB1复合菌制剂具有与金霉素相当的促生长效果,在日粮中添加丁酸梭菌CB1制剂可以显著提高肠道绒毛高度和VH/CD值,有效促进肉鸡的生长性能,促进肠道形态发育,改善肠道菌群。

关键词: 丁酸梭菌CB1, 肉鸡, 生产性能, 肠道形态和菌群, 抗生素替代

Abstract: This study was designed to investigate the effects of Clostridium butyricum CB1 preparations and composite probiotics added to the diets on broiler production performance, intestinal morphology and structure of microbial community. A total of 15 000 one-day old of Cobb500 broiler chickens were randomly divided into 5 groups, with 3 replicates in each group and 1 000 chickens in each replicate, they were fed with:group A (basal diet), group B (basal diet supplemented with 50 g/t chlortetracycline), group C1, C2 and D were basal diets supplemented with 100 g/t C. butyricum CB1 preparation, 200 g/t C. butyricum CB1 preparation and 200 g/t C. butyricum CB1 preparation and Bacillus subtilis preparation, 42 days trial period. The test results showed that broilers in antibiotic (chlortetracycline) group B and group C1, C2 and D fed with C. butyricum CB1 preparation could increase the average body weight in different levels. The average daily weight gain of groups C1, C2 and D from 1 to 21 days were higher than that in antibiotic group B (P<0.05 or P<0.01), and the average daily gain of group D from 1 to 42 days was similar to that of group B (P>0.05). During the test period, the feed conversion ratio and death rate of group C2 and group D was obviously below basal diet group A and antibiotic group B, and of these the height of cecum villus and VH/CD ratio of group D was the highest. Adding C. butyricum CB1 to the diet could significantly promote the proliferation of Lactobacillus and Bifidobacterium in ileum and cecum of broilers. It can be seen that the C. butyricum CB1 complex bacteria preparation has a growth-promoting effect equivalent to that of chlortetracycline. C. butyricum CB1 preparation added in diets can significantly increase the height of intestinal villi and the VH/CD value, effectively promote the growth performance of broilers, enhance immune function, promote the development of intestinal morphology, and improve intestinal flora.

Key words: Clostridium butyricum CB1, broiler, production performance, intestinal morphology and flora, replacing antibiotics

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