驴繁殖生理与繁育技术研究进展OA

The donkey is an important traditional livestock genetic resource in China,and its breeding performance directly impacts the high-quality development of the industry and the conservation of genetic resources.However,low reproductive efficiency and relatively lagging-behind breeding technology systems remain the core constraints on the current development of the donkey industry.Firstly,this paper reviews the latest research progress on donkey reproductive physiology and breeding technologies,systematically elucidates core physiological characteristics,including reproductive organ development,estrous cycle regulation,gametogenesis,fertilization,pregnancy and parturition,while clarifying the species-specific aspects of hormonal secretion,molecular regulation and environmental influences.Secondly,this paper summarizes the research findings,current application status and optimization strategies of mainstream breeding technologies,such as artificial insemination,semen cryopreservation,estrus synchronization and timed artificial insemination,and embryo engineering.Thirdly,the development of assisted reproduction technologies including semen quality assessment and the prevention and control of reproductive disorders is discussed.This paper aims to provide a profound theoretical foundation and technical support for the optimization of donkey breeding technologies and the conservation of germplasm resources.