中国畜牧兽医 ›› 2023, Vol. 50 ›› Issue (6): 2321-2332.doi: 10.16431/j.cnki.1671-7236.2023.06.016

• 营养与饲料 • 上一篇    下一篇

产气荚膜梭菌噬菌体及乳酸杆菌联用改善肉鸡生长性能和调节肠道菌群功能研究

吴立婷1, 陆睿1,2, 刘半红1,3, 包红朵1, 王永娟4, 周艳1, 王冉1, 张辉1   

  1. 1. 江苏省农业科学院农产品质量安全与营养研究所, 江苏省食品质量安全重点实验室-省部共建国家重点实验室培育基地, 南京 210014;
    2. 江苏大学食品与生物工程学院, 镇江 212013;
    3. 陕西科技大学食品与生物工程学院, 西安 710021;
    4. 江苏农牧科技职业学院, 泰州 225300
  • 收稿日期:2022-11-01 出版日期:2023-06-05 发布日期:2023-05-30
  • 通讯作者: 张辉 E-mail:Huiz@jaas.ac.cn
  • 作者简介:吴立婷,E-mail:1206186910@qq.com;陆睿,E-mail:614230964@qq.com。
  • 基金资助:
    国家重点研发计划项目(2018YFE0101900);江苏省重点研发计划项目(BE2022361);江苏省农业科技自主创新资金项目(cx(21)1004)

Combination of Clostridium perfringens Phage and Lactobacillus Improves Growth Performance and Regulates Intestinal Flora Function of Broilers

WU Liting1, LU Rui1,2, LIU Banhong1,3, BAO Hongduo1, WANG Yongjuan4, ZHOU Yan1, WANG Ran1, ZHANG Hui1   

  1. 1. Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safe and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
    2. School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China;
    3. School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China;
    4. Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 225300, China
  • Received:2022-11-01 Online:2023-06-05 Published:2023-05-30

摘要: 【目的】明确产气荚膜梭菌噬菌体及乳酸杆菌联用对肉鸡的生产性能、肠道形态结构及微生物多样性的影响,为禽健康养殖中产气荚膜梭菌的感染提供关键防控技术。【方法】选取240只1日龄青脚麻鸡,随机分为4组:HN02噬菌体组、乳酸杆菌组、HN02噬菌体+乳酸杆菌联用组及空白对照组,每组6个重复,每个重复10只鸡,试验期14 d,期间连续每天饮用噬菌体和/或乳酸杆菌。统计平均日采食量(ADFI)、平均日增重(ADG)及料重比(F/G),计算脏器系数。取盲肠内容物测定产气荚膜梭菌数量,并对16S rRNA基因进行扩增,分析肠道微生物群落结构和多样性。【结果】与空白对照组相比,HN02噬菌体+乳酸杆菌联用能显著提高雏鸡平均日增重及绒毛高度/隐窝深度(P<0.05),显著降低雏鸡料重比和空肠、回肠隐窝深度(P<0.05),且处理14 d的抑菌效果最佳,产气荚膜梭菌的数量减少1.17 lg CFU/mL。微生物多样性显示,HN02噬菌体+乳酸杆菌联用饮水后雏鸡盲肠内容物菌群中变形菌门、厚壁菌门、放线菌门及拟杆菌门相对丰度较高,属水平中乳杆菌属相对丰度较高,与空白对照组相比,HN02噬菌体+乳酸杆菌联用连续饮用14 d后葡萄球菌属相对丰度较低。【结论】产气荚膜梭菌噬菌体和乳酸杆菌联用能够改善肉鸡的生长性能及肠道发育,维持肠道微生物群落的多样性,在养禽业的产气荚膜梭菌感染的预防中有巨大应用潜力。

关键词: 产气荚膜梭菌; 噬菌体; 乳酸杆菌; 肉鸡; 生长性能; 肠道菌群

Abstract: 【Objective】 This study was aimed to determine the combined effects of Clostridium perfringens (C.perfringens) phage and Lactobacillus on the production performance, intestinal structure and microbial diversity of broilers, and provide the prevention and control technique for C.perfringens infection.【Method】 240 1-day-old Blue-footed partridge chickens were divided into 4 groups:HN02 phage group, Lactobacillus group, HN02 phage+Lactobacillus combination group and blank control group, with 6 replicates (10 per replicate) fed 14 days by drinking phage and/or Lactobacillus in water continuously every day during the period.The average daily food intake (ADFI), average daily gain (ADG) and feed-to-weight ratio (F/G) were counted, the organ index were measured.The number of C.perfringens of cecal content was determined and analyzed by 16S rRNA gene amplification for the structure and diversity of intestinal microbial community.【Result】 Compared with blank control group, in HN02 phage+Lactobacillus combination group, the ADG and villus height/crypt depth were significantly increased (P<0.05), the F/G and crypts depth of jejunal and ileum were significantly decreased (P<0.05), and the number of C.perfringens decreased 1.17 lg CFU/mL on 14 days with the best bacteriostatic effect.The results of microbial diversity showed that the relative abundance of Proteobacteria, Firmicutes, Actinobacteriota and Bacteroidota in the cecal content flora of broilers was higher after drinking HN02 phage+Lactobacillus, and the relative abundance of Lactobacillus was higher at the genus level.Compared with blank control group, the relative abundance of Staphylococcus was lower after drinking HN02 bacteriophage+Lactobacillus for 14 days.【Conclusion】 The combination of C.perfringens phage and Lactobacillus could improve the growth performance and intestinal development of broilers, and maintain the diversity of intestinal microbial community, which showed great potential in the prevention of C.perfringens infection in poultry industry.

Key words: Clostridium perfringens; phage; Lactobacillus; broilers; growth performance; intestinal flora

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