China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (6): 2321-2332.doi: 10.16431/j.cnki.1671-7236.2023.06.016

• Nutrition and Feed • Previous Articles     Next Articles

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

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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