催乳素(PRL)是一种生物学效应十分广泛的蛋白质激素。其中重要的一种是它在动物乳汁生成和生殖方面的作用。应用RIA法对PRL的生物学效应与血清中含量的关系进行研究是60年代末发展的新技术,目前国外对于PRL的研究工作很广泛。我国近年来对蛋白质激素的研究也很重视,但用自己提纯的羊PRL建立RIA法还未见报道。本文的目的旨在用自己提纯的产品建立羊PRL的RIA法,为催乳素的研究在我国迅速开展奠定基础。 Prolactin (PRL) is a protein hormone with a wide range of biological effects. One of the important ones is its role in animal milk production and reproduction. The application of RIA to study the relationship between the biological effect of PRL and serum content is a new technology developed in the late 1960s. At present, foreign research on PRL is very extensive. In recent years, our country also attaches great importance to the study of protein hormones, but the establishment of RIA method with its own purified sheep PRL has not been reported yet. The purpose of this paper is to establish the RIA method of sheep PRL with its own purified products, which lays the foundation for the rapid development of prolactin in our country.