Research advances in the structure,function,and regulation of the gill barrier in  

作　　者：Xingyu Chen Shubin Liu Qianwen Ding Tsegay Teame Yalin Yang Chao Ran Zhen Zhang Zhigang Zhou 

机构地区：[1]Sino-Norway Joint Lab on Fish Gut Microbiota,Feed Research Institute,Chinese Academy of Agricultural Sciences,Beijing,100081,China [2]Key Laboratory for Feed Biotechnology of the Ministry of Agriculture and Rural Affairs,Feed Research Institute,Chinese Academy of Agricultural Sciences,Beijing,100081,China

出　　处：《Water Biology and Security》2023年第2期13-22,共10页水生生物与安全（英文）

基　　金：funded by the National Natural Science Foundation of China(NSFC 31925038,32172991,32061133004,31972807,and 31872584);the Jiangxi“Double Thousand Plan”-3A Feed,Worryfree System(S2020DQKJ0006).

摘　　要：The gill is an important organ in fish that is involved in various physiological functions,including respiration,filter-feeding,ammonia nitrogen excretion,and osmoregulation.The physiological functions of gills are closely related to their structure,external feeding conditions,and environmental factors.Herein,we first briefly summarize the basic structure and functions of the gills of teleosts,then explain the structure and function of the gill barrier(as a microbial barrier,a chemical barrier,a physical barrier,and an immune barrier)in detail.Finally,we introduce the regulation of fish gill barrier health by ubiquitous feeding factors and environmental factors,and provide an outlook on the prospects of gill barrier health.We found that improving health through modulating feed factors is more convenient than improving environmental factors.This review increases our understanding of how nutrient composition and level in fish diet influences gill health and overall growth performance of fish.

关 键 词：Fish gill Gill barrier Feed factor Environmental factor Gill microbiota 

分 类 号：Q95[生物学—动物学]