硒对水产养殖动物的生物学功能和毒性作用及其机理研究进展

Biological Functions and Toxic Effects of Selenium on Aquaculture Animals and Research Advances of Its Mechanism

硒是水产养殖动物的必需微量元素,在维持正常生长、增强免疫和抗氧化功能方面发挥了重要作用。水产养殖动物饲料中硒的适宜添加量范围非常窄,过量添加会对动物产生多种毒性作用。本文综述了适量硒对水产养殖动物的生物学功能和过量硒造成的毒性作用及其相关机理,总结了不同水产养殖动物的硒需求量,以期为水产养殖动物的硒营养学研究提供借鉴,为生产上精确使用硒类添加剂提供参考。

Selenium(Se)is an essential trace element for aquaculture animals,which plays an important role in maintaining normal growth,enhancing immune and antioxidant functions.However,the range of suitable Se inclusion in the diet is very narrow and excess Se will result in a variety of toxic effects in animals.In this paper,we reviewed the biological functions of Se in aquaculture animals and the toxic effects caused by excess Se and its related mechanisms.Moreover,the optimal requirements of Se in different forms in the diet for various aquaculture animals were also summarized in the paper.The aim of this paper is to provide a reference for nutritional studies of Se in aquaculture animals as well as for the accurate use of Se additives in production.