Effects of Lactococcus lactis on the Intestinal Functions in Weaning Piglets

Post-weaning diarrhea of piglets is associated with gut microbiota dysbiosis and intestinal pathogen infection. Recent studies have shown that Lactococcus lactis (L.lactis) could help suppress pathogen infection. This study aimed to investigate the effects of L.lactis on various factors related to g...

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Main Authors: Dongming Yu, Yaoyao Xia, Liangpeng Ge, Bie Tan, Shuai Chen
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-08-01
Series:Frontiers in Nutrition
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnut.2021.713256/full
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author Dongming Yu
Dongming Yu
Yaoyao Xia
Liangpeng Ge
Bie Tan
Bie Tan
Bie Tan
Bie Tan
Shuai Chen
Shuai Chen
Shuai Chen
Shuai Chen
author_facet Dongming Yu
Dongming Yu
Yaoyao Xia
Liangpeng Ge
Bie Tan
Bie Tan
Bie Tan
Bie Tan
Shuai Chen
Shuai Chen
Shuai Chen
Shuai Chen
author_sort Dongming Yu
collection DOAJ
description Post-weaning diarrhea of piglets is associated with gut microbiota dysbiosis and intestinal pathogen infection. Recent studies have shown that Lactococcus lactis (L.lactis) could help suppress pathogen infection. This study aimed to investigate the effects of L.lactis on various factors related to growth and immunity in weaning piglets. The results showed that L.lactis improved the growth performance, regulated the amino acid profile (for example, increasing serum tryptophan and ileal mucosal cystine) and the intestinal GABAergic system (including inhibiting ileal gene expression of SLC6A13, GABAAρ1, π, θ, and γ1, and promoting ileal GABAAα5 expression). L.lactis also modulated intestinal immunity by promoting jejunal interleukin 17, 18, 22, ileal toll-like receptor 2, 5, 6, and myeloid differentiation primary response protein 88 gene expression while inhibiting jejunal interferon-γ and ileal interleukin 22 expressions. L.lactis highly affected the intestinal microbiota by improving the beta diversity of gut microbiota and the relative abundance of Halomonas and Shewanella. In conclusion, L.lactis improved the growth performance and regulated amino acid profiles, intestinal immunity and microbiota in weaning piglets.
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spelling doaj.art-ffaef199bc5948a589571bf9846fd4ba2022-12-21T22:44:38ZengFrontiers Media S.A.Frontiers in Nutrition2296-861X2021-08-01810.3389/fnut.2021.713256713256Effects of Lactococcus lactis on the Intestinal Functions in Weaning PigletsDongming Yu0Dongming Yu1Yaoyao Xia2Liangpeng Ge3Bie Tan4Bie Tan5Bie Tan6Bie Tan7Shuai Chen8Shuai Chen9Shuai Chen10Shuai Chen11Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, ChinaChongqing Academy of Animal Sciences, Chongqing, ChinaGuangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, ChinaChongqing Academy of Animal Sciences, Chongqing, ChinaGuangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, ChinaLaboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Changsha, ChinaNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, ChinaInstitute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, ChinaGuangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, ChinaLaboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Changsha, ChinaNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, ChinaInstitute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, ChinaPost-weaning diarrhea of piglets is associated with gut microbiota dysbiosis and intestinal pathogen infection. Recent studies have shown that Lactococcus lactis (L.lactis) could help suppress pathogen infection. This study aimed to investigate the effects of L.lactis on various factors related to growth and immunity in weaning piglets. The results showed that L.lactis improved the growth performance, regulated the amino acid profile (for example, increasing serum tryptophan and ileal mucosal cystine) and the intestinal GABAergic system (including inhibiting ileal gene expression of SLC6A13, GABAAρ1, π, θ, and γ1, and promoting ileal GABAAα5 expression). L.lactis also modulated intestinal immunity by promoting jejunal interleukin 17, 18, 22, ileal toll-like receptor 2, 5, 6, and myeloid differentiation primary response protein 88 gene expression while inhibiting jejunal interferon-γ and ileal interleukin 22 expressions. L.lactis highly affected the intestinal microbiota by improving the beta diversity of gut microbiota and the relative abundance of Halomonas and Shewanella. In conclusion, L.lactis improved the growth performance and regulated amino acid profiles, intestinal immunity and microbiota in weaning piglets.https://www.frontiersin.org/articles/10.3389/fnut.2021.713256/fullLactococcus lactisamino acidweaning pigletintestinal immunitygut microbiota
spellingShingle Dongming Yu
Dongming Yu
Yaoyao Xia
Liangpeng Ge
Bie Tan
Bie Tan
Bie Tan
Bie Tan
Shuai Chen
Shuai Chen
Shuai Chen
Shuai Chen
Effects of Lactococcus lactis on the Intestinal Functions in Weaning Piglets
Frontiers in Nutrition
Lactococcus lactis
amino acid
weaning piglet
intestinal immunity
gut microbiota
title Effects of Lactococcus lactis on the Intestinal Functions in Weaning Piglets
title_full Effects of Lactococcus lactis on the Intestinal Functions in Weaning Piglets
title_fullStr Effects of Lactococcus lactis on the Intestinal Functions in Weaning Piglets
title_full_unstemmed Effects of Lactococcus lactis on the Intestinal Functions in Weaning Piglets
title_short Effects of Lactococcus lactis on the Intestinal Functions in Weaning Piglets
title_sort effects of lactococcus lactis on the intestinal functions in weaning piglets
topic Lactococcus lactis
amino acid
weaning piglet
intestinal immunity
gut microbiota
url https://www.frontiersin.org/articles/10.3389/fnut.2021.713256/full
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