产后的养殖环境改变了幼的护理人员和后代的互动
Hannah E Lapp1, Melissa Salazar1, Frances A Champagne1
1Department of Psychology, University of Texas at Austin, 108 E. Dean Keaton St, Austin, TX 78712, United States of America.
Hormones and behavior
|August 26, 2024
概括
有限的床和筑巢材料 (LBN) 养殖改变了幼,增加了母亲的照顾. 这项研究揭示了小狗如何积极地寻求照顾,从而影响长期的神经生物学发展.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 动物行为 动物行为
背景情况:
- 早期的母亲照顾深刻地塑造了婴儿的神经生物学和行为.
- 婴儿是照顾孩子的积极参与者,他们利用线索来吸引母亲的注意.
- 有限的床和筑巢材料 (LBN) 养殖是改变母亲护理的模式,通常归因于母亲的压力.
研究的目的:
- 调查LBN养育是否会改变影响母子行为的幼.
- 了解LBN对母婴护理产生的影响背后的机制.
- 在LBN条件下探索母和幼之间的双向通信.
主要方法:
- 幼鼠和母鼠从产后日 (P) 0-6被分配到LBN或控制条件,在P6-13进行交叉养.
- 通过基于机器学习的自动化分析,对母亲的行为进行了24小时的监测.
- 评估了小狗的核心体温,体重,发声,血清丸激素和运动.
主要成果:
- 养育LBN增加了幼导向的母子行为.
- LBN幼表现出降低的核心体温,较低的体重和改变的发声.
- 在暴露于LBN的幼中,幼血清丸激素的升高与母亲和理的增加相关.
- 在LBN幼中,幼运动的减少和声音的改变导致了母乳哺乳延迟的延长.
- 早期的LBN暴露导致幼犬行为的持久变化,包括更长时间的巢穴出席和更短的/修饰.
结论:
- 养育LBN改变幼的行为和荷尔蒙信号,有效地引起增强的母体护理.
- 雌和幼之间的双向通信是调解早期生活环境持久影响的关键机制.
- 幼发起的线索在塑造母亲的行为和长期发展结果方面发挥着重要作用.
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