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CompoundLactobacillussp. administration ameliorates stress and body growth through gut microbiota optimization on weaning piglets

文献类型： 外文期刊

作者： Yang, Jiajun 1 ; Wang, Chonglong 1 ; Huang, Kehe 3 ; Zhang, Minhong 4 ; Wang, Jing 1 ; Pan, Xiaocheng 1 ;

作者机构： 1.Anhui Acad Agr Sci, Inst Anim Husb & Vet Med, Anhui Prov Key Lab Livestock & Poultry Prod Safet, 40 NongKe South Rd, Hefei 230031, Anhui, Peoples R China

2.Anhui Acad Agr Sci, Key Lab Pig Mol Quantitat Genet, Inst Anim Husb & Vet Med, 40 Nongke South Rd, Hefei 230031, Anhui, Peoples R China

3.Nanjing Agr Univ, Inst Nutr & Metab Disorders, Coll Vet Med, Nanjing 210095, Peoples R China

4.Chinese Acad Agr Sci, State Key Lab Anim Nutr, Inst Anim Sci, Yuanminyuan West Rd, Beijing 100094, Peoples R China

5.Livestock & Poultry Epidem Dis Res Ctr Anhui Prov, Hefei 230031, Anhui, Peoples R China

关键词： Lactobacillus; Gut microbiota; Growth performance; Weaning stress; Piglet

期刊名称：APPLIED MICROBIOLOGY AND BIOTECHNOLOGY （ 2020影响因子：4.813； 五年影响因子：4.697 ）

ISSN： 0175-7598

年卷期： 2020 年 104 卷 15 期

页码：

收录情况： SCI

摘要： The composition of bacteria in the gastrointestinal tract of piglets is easily affected by environmental changes, particularly during the weaning period. Compound strains ofLactobacillus reuteriandLactobacillus salivariuswere supplemented to piglets during pre- and post-weaning to determine their effects in improving the growth performance and ameliorating the diarrhea rate and stress caused by antioxidation in piglets. A larger number ofL. reuteriandL. salivariuscolonized the distal segment of the ileum and the total numbers ofLactobacillusspp.andBifidobacteriawere higher in the ileal mucous membrane and cecal lumen with probiotics supplementation. The numbers of antioxidants and immune molecules increased, levels of cortisol and endotoxin reduced, and growth hormone and insulin-like growth factor 1 improved in the plasma following compound bacteria (CL) supplementation. Spearman's and KEGG analysis of the bacterial operational taxonomic unit and antioxidative and immune indices and metabolic genes indicated that the body growth modulation by CL supplementation could be attributed to optimization of the intestinal bacterial composition; functional strains ofL. delbrueckii,L. salivarius,L. formicilis,L. reuteri, andL. mucosaewere positively correlated with body antioxidation and immunity derived by CL supplementation. Strains ofL. agilisandL. pontiswere diverse and negatively correlated with body antioxidation and immunity. Collectively, these results suggest that supplementation with CL could reduce stress and improve the growth performance of piglets during weaning by optimizing the intestinal bacterial composition.

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