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在胚胎受体马匹的 antral 毛囊数量和生殖特征之间的关系

Sofia Botsaris Delchiaro¹, Pedro Victor de Luna Freire Oliveira², Rubens José Paulossi Júnior¹

¹State University of Londrina (UEL), Highway Celso Garcia Cid, PR-445, Km 380 - Campus Universitário, Londrina, PR, 86057-970, Brazil.

Journal of equine veterinary science

|February 12, 2024

概括

马胚胎接受者具有较低的 antral 毛囊数量 (AFC) 和那些周期性的胚胎接受者具有更高的受孕率. 具有高AFC的Anestrus母马的受孕率最低,突出的是AFC和周期性.

科学领域:

生殖生物学生殖生物学
马科的科学马科的科学
胚胎转移技术的技术转移

背景情况:

前毛囊数 (AFC) 是母马卵巢储备的一个关键指标.
了解影响胚胎转移受孕率的因素对于马类繁殖至关重要.

研究的目的:

评估毛囊数 (AFC) 和生殖季节性对马胚受体受孕率的影响.
在进行胚胎移植的马匹中研究AFC,周期性和子宫 (UE) 之间的关系.

主要方法:

77只母马根据AFC (低≤11,高>11) 和生殖状态 (周期性与麻醉性) 分类.
对于非循环受体,使用了荷尔蒙方案 (雌激素和孕激素).
在胚胎移植 (ET) 后的第12天和第30天评估了受孕率.
使用混合效应模型分析数据,考虑AFC,季节性和季节性.

主要成果:

与高AFC (61.76%) 相比,低AFC (79.07%) 的母马的受孕率显著更高.
循环马的受孕率 (81.40%) 比麻醉马的受孕率 (58.82%) 高.
观察到AFC和生殖季节性之间的显著相互作用,高AFC/anestrus马匹显示最低的受孕率 (37.50%).
子宫 (UE) 受生殖季节性的影响,麻醉马匹表现出更大的UE.

结论:

低 antral 毛囊数量 (AFC) 和周期性生殖状态是成功胚胎转移马匹的有利预测因素.
马的生殖状况和AFC显著影响受孕率,当它们结合在一起时 (高AFC和anestrus) 有显著的负面影响.
子宫 (UE) 与生殖季节性有关,可能影响胚胎植入.

关键词:

腹毛囊数量腹毛囊数量红色体 (Corpus luteum) 是一个体.胚胎接收者是胚胎接收者胚胎转移是胚胎的转移.马匹马匹马匹

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