奶山羊同期发情与人工授精技术的应用效果及影响因素分析OA

[Objective]To investigate the effects of estrus synchronization and artificial insemination(AI)technology on the conception rate of dairy goats,providing technical support for improving breeding efficiency and standardized development of the industry.[Method]A total of 3 805 breeding does from 37 dairy goat farms in Longxian County,Shaanxi Province,were studied.Two breeding methods were compared:①natural estrus+AI;and②estrus synchronization(using intravaginal sponges impregnated with fluorogestone acetate combined with PMSG and PG hormone treatments)+AI.The conception rate was determined via ultrasound pregnancy testing,and the effects of farming methods,insemination sites,breeding timing,and other factors were analyzed.[Result]The average conception rate in the estrus synchronization+AI group was 71.56%,significantly higher than that in the natural estrus group(68.56%).The optimal combination was semi-grazing and semi-penned farming(73.10%),cervical insemination(74.39%),and breeding in August(75.49%).[Conclusion]Estrus synchronization technology can significantly improve the conception rate of dairy goats,with its effectiveness influenced by farming models,operational protocols,and seasonal factors.Tailored implementation plans are recommended to promote high-quality industry development.