Article (Scientific journals)
Glycerol Monolaurate Ameliorated Intestinal Barrier and Immunity in Broilers by Regulating Intestinal Inflammation, Antioxidant Balance, and Intestinal Microbiota.
Kong, Linglian; Wang, Zhenhua; Xiao, Chuanpi et al.
2021In Frontiers in Immunology, 12, p. 713485
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Keywords :
antioxidant; glycerol monolaurate; inflammation; intestinal barrier; microbiota; Antioxidants; Cytokines; Immunoglobulin G; Laurates; Monoglycerides; Mucins; monolaurin; Animals; Antioxidants/metabolism; Chickens; Cytokines/biosynthesis; Gastrointestinal Microbiome/drug effects; Gene Expression Regulation/drug effects; Immunity, Mucosal/drug effects; Immunoglobulin G/blood; Immunoglobulin G/immunology; Intestinal Mucosa/immunology; Intestinal Mucosa/metabolism; Intestinal Mucosa/pathology; Laurates/pharmacology; Metagenome; Metagenomics/methods; Monoglycerides/pharmacology; Mucins/genetics; Mucins/metabolism; Gastrointestinal Microbiome; Gene Expression Regulation; Immunity, Mucosal; Intestinal Mucosa; Metagenomics; Immunology and Allergy; Immunology
Abstract :
[en] This study was conducted to investigate the impact of glycerol monolaurate (GML) on performance, immunity, intestinal barrier, and cecal microbiota in broiler chicks. A total of 360 one-day-old broilers (Arbor Acres) with an average weight of 45.7 g were randomly allocated to five dietary groups as follows: basal diet and basal diets complemented with 300, 600, 900, or 1200 mg/kg GML. Samples were collected at 7 and 14 days of age. Results revealed that feed intake increased (P < 0.05) after 900 and 1200 mg/kg GML were administered during the entire 14-day experiment period. Dietary GML decreased (P < 0.05) crypt depth and increased the villus height-to-crypt depth ratio of the jejunum. In the serum and jejunum, supplementation with more than 600 mg/kg GML reduced (P < 0.05) interleukin-1β, tumor necrosis factor-α, and malondialdehyde levels and increased (P < 0.05) the levels of immunoglobulin G, jejunal mucin 2, total antioxidant capacity, and total superoxide dismutase. GML down-regulate (P < 0.05) jejunal interleukin-1β and interferon-γ expression and increased (P < 0.05) the mRNA level of zonula occludens 1 and occludin. A reduced (P < 0.05) expression of toll-like receptor 4 and nuclear factor kappa-B was shown in GML-treated groups. In addition, GML modulated the composition of the cecal microbiota of the broilers, improved (P < 0.05) microbial diversity, and increased (P < 0.05) the abundance of butyrate-producing bacteria. Spearman's correlation analysis revealed that the genera Barnesiella, Coprobacter, Lachnospiraceae, Faecalibacterium, Bacteroides, Odoriacter, and Parabacteroides were related to inflammation and intestinal integrity. In conclusion, GML ameliorated intestinal morphology and barrier function in broiler chicks probably by regulating intestinal immune and antioxidant balance, as well as intestinal microbiota.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Kong, Linglian;  Department of Animal Science and Technology, Shandong Agricultural University, Taian, China
Wang, Zhenhua;  Center for Mitochondria and Healthy Ageing, College of Life Sciences, Yantai University, Yantai, China
Xiao, Chuanpi  ;  Université de Liège - ULiège > TERRA Research Centre
Zhu, Qidong;  Department of Animal Science and Technology, Shandong Agricultural University, Taian, China
Song, Zhigang;  Department of Animal Science and Technology, Shandong Agricultural University, Taian, China
Language :
English
Title :
Glycerol Monolaurate Ameliorated Intestinal Barrier and Immunity in Broilers by Regulating Intestinal Inflammation, Antioxidant Balance, and Intestinal Microbiota.
Publication date :
15 September 2021
Journal title :
Frontiers in Immunology
eISSN :
1664-3224
Publisher :
Frontiers Media S.A., Switzerland
Volume :
12
Pages :
713485
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Natural Science Foundation of Shandong Province
National Key Research and Development Program of China
Funding text :
This work was supported by the Natural Science Foundation of Shandong Province (ZR2020MC170), the National Key R&D Program of China (2018YFD0501401-3), and the Shandong Province Agricultural Industry Technology (SDAIT-11-08).
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since 26 February 2022

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