Effects of Selenium on Production and Reproduction Performance of Animals

Selenium as one of the most important biotic elements in environment has a great impact on animal's growth and development and human's health.Many producers pay much attention to the effects of selenium on production and reproduction performance of animals.In order to provide a reference for practice,the paper introduces absorption,utilization and excretion of selenium in vivo,its main biological role,and its effects on production and reproduction performance of animals.