羊的早期妊娠诊断及产羔数预测研究进展

Research Progress on Diagnosis of Early Pregnancy andPrediction of Litter Size of Ewes

早期妊娠诊断能有效减少母羊空怀率,同时便于及时对妊娠母羊进行合理的分群饲养和管理,对提高羊的繁殖效率及增加养羊业经济效益具有重要意义。该文就羊的早期妊娠诊断技术及产羔数的预测方法进行了综述,旨在为养羊业生产实践提供技术指导。

Early pregnancy diagnosis can effectively reduce the empty rate of ewes.At the same time,it is convenient for reassignment and management of pregnant ewes,which is of great significance to improving the reproductive efficiency of ewes and increasing the economic benefits.This article reviews diagnosis techniques of ewe's early pregnancy and prediction methods of litter size,aiming to provide technical guidance for ewes production practice.