中文摘要：

卵黄抗体（immunoglobulinofyolk，IgY）具有性质稳定、制备简单、产量高、成本低等优点，已广泛用于动物的疾病防制，随着抗生素的禁用，卵黄抗体逐渐成为一种新型饲料添加剂在饲料中添加应用。作者就卵黄抗体的特征及其在动物疾病防制与饲料中的应用进行了简要概述。

英文摘要：

Immunoglobulin of yolk has many significant advantages, such as high stability, easy preparation, high yield and low cost. They have been used widely in animal diseases prevention and cure. With antibiotics disabled,immunoglobulin of yolk will gradually become a new feed additive in feed applications. In this paper, the formation and character of immunoglobulin of yolk and its application in diseases prevention and feed were reviewed briefly.