Biotechnology Bulletin ›› 2022, Vol. 38 ›› Issue (7): 128-135.doi: 10.13560/j.cnki.biotech.bull.1985.2021-1322

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Role of Gut-Liver Axis in Animal Nutritional Metabolism and Immunity

JIANG Xian-zhe1(), ZHANG Bo-yan1, LUO Hai-ling1, ZHANG Xin-meng2, WANG Bing1()   

  1. 1. National Key Laboratory of Animal Nutrition,College of Animal Science and Technology,China Agricultural University,Beijing 100193
    2. Agricultural Technology Extension Center of Lingcheng,Dezhou 253500
  • Received:2021-10-20 Online:2022-07-26 Published:2022-08-09
  • Contact: WANG Bing E-mail:879650302@qq.com;wangb@cau.edu.cn

Abstract:

The gut-liver axis is a bidirectional relationship between intestinal microorganisms and the liver,which is essential for the intestinal microbe to affect the host. Growing studies have shown that the gut-liver axis plays a key regulatory role in animal nutrition metabolism and body immunity. Based on the bridge role of the gut-liver axis in the interaction between intestinal microbe and host,this review discusses two regulatory mechanisms of gut-liver axis in animal nutrition metabolism and body immunity:endocannabinoid system and gut microbiota-derived signals. Gut microbiota-derived signals include short-chain fatty acids,bile acids,choline metabolites,amino acid metabolites,and microbial-related molecular patterns. Finally,the paper discusses application prospect of gut-liver axis theory in animal husbandry production,aiming to provide support for healthy and efficient animal feeding without antibiotics.

Key words: gut-liver axis, nutritional immunity, the endocannabinoid system, short-chain fatty acids, bile acids, microbial-related molecular patterns