【摘要】 [目的]探究同期发情与人工授精技术对奶山羊受胎率的影响，为提升奶山羊良种繁育效率和产业标准化发展提供技术支撑。[方法]以陕西省陇县37个奶山羊场的3 805只繁殖母羊为研究对象，对比两种配种方式：(1)自然发情+人工输精；(2)同期发情（醋酸氟孕酮阴道海绵联合PMSG、PG激素处理）+人工输精。通过B超孕检统计受胎率，分析养殖方式、输精部位、配种时间等因素对结果的影响。[结果]同期发情+人工授精组的平均受胎率达71.56%，显著高于自然发情组（68.56%）。半放牧半舍饲（73.10%）、子宫颈口输精（74.39%）及8月配种（75.49%）的组合模式效果最优。[结论]同期发情技术可显著提高奶山羊受胎率，其效果受养殖模式、操作规范及季节因素综合影响，需结合奶山羊场个性化方案推广以促进产业高质量发展。更多还原

【Abstract】 [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:(1)natural estrus+AI;and(2)estrus 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.更多还原