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The Feed Additive Potassium Diformate Prevents Salmonella enterica Serovar Pullorum Infection and Affects Intestinal Flora in Chickens

文献类型: 外文期刊

作者: Sun, Yufan 1 ; Yu, Panyuan 1 ; Cheng, Yiluo 1 ; Liu, Jiahui 1 ; Chen, Xiabing 2 ; Zhang, Tengfei 3 ; Gao, Ting 3 ; Zhou, Rui 1 ; Li, Lu 1 ;

作者机构: 1.Huazhong Agr Univ, Coll Vet Med, Cooperat Innovat Ctr Sustainable Pig Prod Cospons, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

2.Wuhan Acad Agr Sci, Inst Anim Husb & Vet Sci, Wuhan 430208, Peoples R China

3.Hubei Acad Agr Sci, Inst Anim Husb & Vet, Key Lab Prevent & Control Agents Anim Bacteriosis, Minist Agr & Rural Affairs,Hubei Prov Key Lab Ani, Wuhan 430064, Peoples R China

4.Minist Sci & Technol China, Int Res Ctr Anim Dis, Wuhan 430070, Peoples R China

关键词: potassium diformate; Salmonella pullorum; intestinal flora; chickens

期刊名称:ANTIBIOTICS-BASEL ( 影响因子:4.8; 五年影响因子:4.9 )

ISSN: 2079-6382

年卷期: 2022 年 11 卷 9 期

页码:

收录情况: SCI

摘要: Extensive studies have shown that potassium diformate (KDF), an antibiotic substitute used as a feed additive, improves animal growth performance, although there is less direct evidence of its preventive effect on bacterial infections and its influence on the intestinal flora of animals. In this study, the inhibition effect of KDF on Salmonella enterica serovar Pullorum, an important enteric pathogen causing pullorum disease, was investigated in vitro and on a chicken infection model. The effect of KDF on the diversities and structures of chicken duodenal and cecum flora were also investigated using 16S rRNA gene sequencing. The results showed that addition of 0.5% KDF in feed or 0.1% KDF in drinking water significantly reduced the bacterial loads and the degree of pathological changes in the cecum, improved digestion and reduced the pH of the gastrointestinal tract of chickens infected with S. pullorum. KDF also significantly modified the diversity and abundance of intestinal microflorae in chickens. In particular, it promoted the colonization of several probiotics, such as Bacteroides, Blautia, Ruminococcus_torques_group and Faecalibacteriumm, which are involved in maintenance of the intestinal barrier, modulation of inflammation, energy supply for intestinal cells and pathogen resistance. These results enrich the theoretical basis for the clinical application of KDF in chickens.

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