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鹿小鼠 (Peromyscus maniculatus bairdii) 的后代死亡率较高,这些小鼠自发地表现出大规模筑巢行为

Heike Stoppel¹, Brian H Harvey², De Wet Wolmarans¹

¹Centre of Excellence for Pharmaceutical Sciences, Department of Pharmacology, North-West University, Potchefstroom 2520, South Africa.

Behavioural processes

|February 15, 2024

概括

鹿小鼠的大型筑巢行为 (LNB),虽然不影响生育能力,但显著降低后代的生存率. 这表明LNB可能表明动物的潜在健康问题,影响动物福利评估.

科学领域:

伦理学伦理学伦理学
动物行为动物行为
动物福利动物福利

背景情况:

筑巢是一种进化保存的动物行为,对于繁殖,安全和温度调节至关重要.
筑巢性能是动物健康和福祉的常见指标.
鹿小鼠的一个子集表现出过于大的筑巢行为 (LNB),在标准化实验室条件下,其功能目的未知.

研究的目的:

为了研究鹿鼠大巢行为 (LNB) 的功能意义.
为了测试LNB与增加育种和护理的动力相关的假设.

主要方法:

在鹿小鼠中,双向选择正常筑巢行为 (NNB) 和LNB.
从选定的NNB和LNB对中繁殖两代后代.
将NNB和LNB组之间的生育率和后代存活率进行比较.

主要成果:

与NNB小鼠相比,带有LNB的鹿小鼠的生育率与NNB小鼠相似.
后代的生存率在LNB组 (67.9%) 与NNB组 (98.3%) 相比显著较低.

结论:

筑巢行为的变化,如LNB,可能表明动物的潜在生物行为扰乱.
在对动物健康和福祉的评估中,应考虑巢行为差异.
鹿鼠中的LNB与后代存活能力受损有关,尽管生育能力正常.

关键词:

鹿鼠是一只老鼠.没有了,没有了,没有了.强迫症是一种强迫症.后代的生存率后代的生存率动物的福祉动物的福祉

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