中文摘要：

大豆异黄酮属异黄酮类植物雌激素,主要存在于豆科植物中,其主要成分为染料木素、大豆苷元和大豆黄素,具有类雌激素和抗雌激素活性的双重作用,且具有抗氧化、调节机体免疫系统及内分泌系统等多种生物学功能,在畜牧业中有着极其广泛的用途,其应用前景非常广阔,是目前国内外研究的热点。文章综述了黄酮类和异黄酮类化合物的结构、大豆异黄酮的含量分布、结构、理化特性与代谢特点及其对动物的生产性能、免疫性能、生殖性能的影响和作用机制。

英文摘要：

Soy isoflavones,which are the major components of soybean,belong to isoflavonic phytoestrogen.Genistein,daidzein and glycitein are the main constituents of soy isoflavones.They all have the similar estrogen and anti-estrogen effects,and they also have many biological functions including antioxidation and regulation of immune and endocrine system.As a focal point of research,soy isoflavones have been widely used in animal feeding operations.This article summarized the structure of flavonoid and isoflavones and the content,distribution,structure,physicochemical property and metabolism of soybean isoflavones.Meanwhile,the effect and mechanism of soybean isoflavones on production performance,immune and reproductive performance of animals were also discussed in this article.