Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge

In this study, the effects of Bacillus subtilis–fermented products on the growth performance and cecal microbiota of broilers were investigated in response to lipopolysaccharide (LPS) challenge. A total of 120 one-day-old male broiler chicks (Ross 308) were randomly assigned to 4 dietary treatments,...

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Main Authors: Jiun-Yu Chen, Yu-Hsiang Yu
Format: Article
Language:English
Published: Elsevier 2021-02-01
Series:Poultry Science
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0032579120308464
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author Jiun-Yu Chen
Yu-Hsiang Yu
author_facet Jiun-Yu Chen
Yu-Hsiang Yu
author_sort Jiun-Yu Chen
collection DOAJ
description In this study, the effects of Bacillus subtilis–fermented products on the growth performance and cecal microbiota of broilers were investigated in response to lipopolysaccharide (LPS) challenge. A total of 120 one-day-old male broiler chicks (Ross 308) were randomly assigned to 4 dietary treatments, with 5 replicate cages per treatment and 6 birds per cage. The dietary treatments comprised a basal diet as the control, basal diet plus 5 mg/kg of LPS, and basal diet plus 5 mg/kg of LPS in combination with 1 and 3 g/kg of B. subtilis–fermented products. The results indicated that B. subtilis–fermented product supplementation increased (linear, P < 0.05) the body weight of broilers relative to LPS treatment alone at 21 d of age. At 15 to 21 d and 1 to 21 d of age, B. subtilis–fermented product supplementation improved (linear, P < 0.05) the average daily gain in broilers compared with LPS challenge alone. The inflammation-associated gene expression was decreased (P < 0.05), and intestinal barrier–associated gene expression was increased (P < 0.05) in the small intestine of the group treated with 3 g/kg of B. subtilis–fermented products in combination with LPS challenge. In cecal microbiota analysis, the richness of bacterial species was lower (P < 0.05) in the groups treated with 1 and 3 g/kg of B. subtilis–fermented products in combination with LPS challenge than in the control group. Principal coordinates analysis indicated distinct clusters between the groups treated with LPS alone and B. subtilis–fermented products in combination with LPS challenge. The abundance of the genera Erysipelatoclostridium and Ruminococcaceae_unclassified in the cecal digesta decreased (P < 0.05) in broilers fed with B. subtilis–fermented products compared with the control group. The average abundance of the genera Bacteroides and Romboutsia in the cecal digesta was positively correlated with the body weight and average daily gain of broilers in response to LPS challenge. Furthermore, the average abundance of the genera Bacteroides and Romboutsia in the cecal digesta was positively correlated with the concentration of B. subtilis–fermented products under LPS challenge. These results demonstrate that B. subtilis–fermented products can improve the growth performance and modulate the gut microflora composition of broilers under immune stress.
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spelling doaj.art-fe9bf958377141ac92c6ee85b525d3142022-12-21T19:58:32ZengElsevierPoultry Science0032-57912021-02-011002875886Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challengeJiun-Yu Chen0Yu-Hsiang Yu1Department of Biotechnology and Animal Science, National Ilan University, Yilan, TaiwanCorresponding author:; Department of Biotechnology and Animal Science, National Ilan University, Yilan, TaiwanIn this study, the effects of Bacillus subtilis–fermented products on the growth performance and cecal microbiota of broilers were investigated in response to lipopolysaccharide (LPS) challenge. A total of 120 one-day-old male broiler chicks (Ross 308) were randomly assigned to 4 dietary treatments, with 5 replicate cages per treatment and 6 birds per cage. The dietary treatments comprised a basal diet as the control, basal diet plus 5 mg/kg of LPS, and basal diet plus 5 mg/kg of LPS in combination with 1 and 3 g/kg of B. subtilis–fermented products. The results indicated that B. subtilis–fermented product supplementation increased (linear, P < 0.05) the body weight of broilers relative to LPS treatment alone at 21 d of age. At 15 to 21 d and 1 to 21 d of age, B. subtilis–fermented product supplementation improved (linear, P < 0.05) the average daily gain in broilers compared with LPS challenge alone. The inflammation-associated gene expression was decreased (P < 0.05), and intestinal barrier–associated gene expression was increased (P < 0.05) in the small intestine of the group treated with 3 g/kg of B. subtilis–fermented products in combination with LPS challenge. In cecal microbiota analysis, the richness of bacterial species was lower (P < 0.05) in the groups treated with 1 and 3 g/kg of B. subtilis–fermented products in combination with LPS challenge than in the control group. Principal coordinates analysis indicated distinct clusters between the groups treated with LPS alone and B. subtilis–fermented products in combination with LPS challenge. The abundance of the genera Erysipelatoclostridium and Ruminococcaceae_unclassified in the cecal digesta decreased (P < 0.05) in broilers fed with B. subtilis–fermented products compared with the control group. The average abundance of the genera Bacteroides and Romboutsia in the cecal digesta was positively correlated with the body weight and average daily gain of broilers in response to LPS challenge. Furthermore, the average abundance of the genera Bacteroides and Romboutsia in the cecal digesta was positively correlated with the concentration of B. subtilis–fermented products under LPS challenge. These results demonstrate that B. subtilis–fermented products can improve the growth performance and modulate the gut microflora composition of broilers under immune stress.http://www.sciencedirect.com/science/article/pii/S0032579120308464Bacillus subtilisbroilerfermented productlipopolysaccharidemicrobiota
spellingShingle Jiun-Yu Chen
Yu-Hsiang Yu
Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge
Poultry Science
Bacillus subtilis
broiler
fermented product
lipopolysaccharide
microbiota
title Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge
title_full Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge
title_fullStr Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge
title_full_unstemmed Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge
title_short Bacillus subtilis–fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge
title_sort bacillus subtilis fermented products ameliorate the growth performance and alter cecal microbiota community in broilers under lipopolysaccharide challenge
topic Bacillus subtilis
broiler
fermented product
lipopolysaccharide
microbiota
url http://www.sciencedirect.com/science/article/pii/S0032579120308464
work_keys_str_mv AT jiunyuchen bacillussubtilisfermentedproductsamelioratethegrowthperformanceandaltercecalmicrobiotacommunityinbroilersunderlipopolysaccharidechallenge
AT yuhsiangyu bacillussubtilisfermentedproductsamelioratethegrowthperformanceandaltercecalmicrobiotacommunityinbroilersunderlipopolysaccharidechallenge