绵羊多羔主效基因FecB研究、检测及应用

Research,Detection and Application of Sheep Polytocous Major Gene FecB

绵羊是重要的家畜,其产羔数是影响养羊业经济效益的关键因素。FecB基因是目前已知调控绵羊产羔数的主效基因之一,其效应位点检测及应用在提升绵羊年出栏率和羊肉产量、加快多羔肉羊新品种培育以及提高规模化羊场养殖效益等方面发挥着重要作用。本文对绵羊多羔主效基因FecB的发现及定位、群体分布与起源、调控绵羊多羔的作用机制、检测方法的建立和发展及其在多羔肉羊育种中的应用进行了综述,以期为绵羊育种和养殖相关从业者提供参考。

Sheep is an important livestock,and the litter size is a key factor affecting the economic benefits of the sheep industry.The FecB gene is one of the major genes known to regulate the litter size of sheep.The detection and application of its effect sites play an important role in improving the annual slaughter rate and mutton yield of sheep,accelerating the cultivation of new varieties of polytocous mutton sheep,and improving the breeding efficiency of large-scale sheep farms.Therefore,the discovery and mapping of the gene FecB,the population distribution and origin,the mechanism of regulating sheep prolificacy,the establishment and development of detection methods,and their applications in the breeding of polytocous mutton sheep were reviewed in this paper,it can provide a reference for sheep breeding and related practitioners.