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通过活跃的雌性选择,改善被囚禁的小熊猫的繁殖成功
bioRxiv : the preprint server for biology
|May 20, 2024
概括
实施伴侣偏好测试,或"爱情迷宫",显著提高了被囚禁的普通海 (Callithrix jacchus) 的繁殖效率. 这种方法提高了繁殖成功,允许雌性选择他们喜欢的男性伴侣,从而提高了殖民地繁殖率.
科学领域:
- 灵长类的生殖生物学
- 动物行为 动物行为
- 生物医学研究模型
背景情况:
- 在生物医学研究菌株供应链中,对普通 (Callithrix jacchus) 的需求日益增加.
- 由于商业来源动物的短缺和高成本,机构繁殖殖地的建立正在增加.
- 能有效地在囚禁状态下繁殖马尔莫塞特是具有挑战性的,通常涉及长期的,不成功的随机配对.
研究的目的:
- 开发和评估一种行为任务,以提高马尔莫塞特在囚禁环境中的繁殖效率.
- 为了实现自我指导的雌性伴侣选择,以改善繁殖结果.
主要方法:
- 一个伴侣偏好测试 ("爱情迷宫") 旨在让无双的雌性海在两个雄性之间做出选择.
- 女性的选择是通过接近,修饰和舌头动行为来评估的,这些行为是针对首选的男性.
- 在三次连续的测试中评估了女性偏好的一致性.
主要成果:
- 雌性始终偏爱一个雄性,积极忽视非偏爱的雄性,并对所选择的伴侣表现出亲社会行为.
- 一旦被选中,女性对男性的偏好在多次测试中保持一致.
- 与随机配对相比,有针对性的雌性选择在90天内使繁殖成功提高了2.5倍.
结论:
- 一种指导性雌性选择方法 ("爱情迷宫") 显著提高了被囚禁的小熊猫的繁殖效率.
- 这种成本效益高且简单的做法可以优化小型和大型马尔莫塞特群体的繁殖.
- 促进雌性伴侣选择提供了一个切实可行的解决方案,以改善用于研究目的的马尔莫塞特繁殖.
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