摘要
氧气对需氧生物的生活和生产至关重要,水体溶解氧(DO)更是鱼类获得氧气的主要来源和生存的重要前提。低氧是指水体环境中的DO含量低于2 mg/L的现象,在水产养殖中,低氧会对鱼类的生长、代谢和行为活动等产生不利影响,进而影响养殖效果。鱼类能够适应一定范围内的低氧状态,但是长期和更深程度的低氧会严重危害鱼类甚至导致死亡,因此还需要采取一定的外部措施来降低或者消除低氧的危害。本文分别对低氧胁迫对鱼类生长、行为和生化指标的影响、相关的基因表达过程等方面的研究进展进行了概述,总结了目前已有的一些应对水产养殖低氧的相关方案,并重点整理陈述了营养调控策略的应用,以期为鱼类逆境相关研究以及水产健康养殖提供参考。
Oxygen is essential for the life and production of oxygen-demanding organisms,and dissolved oxygen(DO)in water is the main source of oxygen for fish and an important prerequisite for survival.Hypoxia is a phenomenon in which the DO content in the water environment is below 2 mg/L.In aquaculture,hypoxia can adversely affect the growth,metabolism and behavioral activities of fish,which in turn affects the culture effect.Fish can adapt to a certain range of hypoxia,but prolonged and deeper hypoxia can seriously damage fish or even lead to death,so some external measures are also needed to reduce or eliminate the harm of hypoxia.This paper provides an overview of the research progress on the effects of hypoxic stress on fish growth,behavior and biochemical indicators,and related gene expression processes,respectively,and summarizes some existing solutions to cope with hypoxia in aquaculture,and focuses on the application of nutrient regulation strategies,with a view to providing references for fish adversity-related research and healthy aquaculture.[Chinese Journal of Animal Nutrition,2023,35(10):6207-6219]
作者
张雷敏
梁化亮
米海峰
任鸣春
ZHANG Leimin;LIANG Hualiang;MI Haifeng;REN Mingchun(Wuxi Fisheries College,Nanjing Agricultural University,Wuxi 214081,China;Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization,Ministry of Agriculture and Rural Affairs,Freshwater Fisheries Research Center,Chinese Academy of Fishery Sciences,Wuxi 214081,China;Tongwei Agricultural Development Co.,Ltd.,Chengdu 610041,China)
出处
《动物营养学报》
CAS
CSCD
北大核心
2023年第10期6207-6219,共13页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
国家重点研发计划(2022YFD2400904)
现代农业产业技术体系专项-国家特色淡水鱼产业技术体系(CARS-46)
国家自然科学基金青年基金项目(32102806)
江苏省自然基金青年基金项目(BK20200169)。
关键词
低氧
机理
鱼类
营养调控
添加剂
hypoxia
mechanisms
fish
nutrient regulation
additives
