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母亲的经验会影响行为反应和每日体重增加,从而影响羊羔的断奶压力

Juan Pablo Damián^1,2, Elize van Lier^3,4, Martín Claramunt⁵

¹Departamento de Biociencias Veterinarias, Unidad de Bioquímica, Facultad de Veterinaria, Universidad de la República, Ruta 8 Km 18, Montevideo, CP 13000, Uruguay. jpablodamian@gmail.com.

Scientific reports

|September 29, 2025

概括

母亲的经验显著影响奶期间羔羊的福利. 来自经验丰富的母亲 (多母) 的羔羊体重增加和行为改变有所减少,这表明与缺乏经验的母亲 (初母) 的羔羊相比,它们的压力更大.

科学领域:

动物科学动物科学
行为科学行为科学
兽医医学兽医医学兽医医学

背景情况:

羊的母体经验对于后代的发展和福利至关重要.
断奶对幼羊来说是一个重要的压力因素.
母亲经验的差异可能会影响后代的应对机制.

研究的目的:

为了比较由多夫妇母羊和初夫妇母羊养的羊羔对断奶压力的行为和生理反应.
调查母体经验在减轻或加剧羊羔与断奶有关的压力的作用.

主要方法:

使用了来自芬兰兰德拉斯 x 波尔沃斯水的23只独生羔羊,根据母体经验分成组 (多卵性与初卵性).
断奶前后评估体重,血清蛋白,以及各种行为 (放牧,站立,发声,步行,行走).
采用全球定位设备来分析行驶距离和平均每日速度的昼夜节律.

主要成果:

来自初母 (LPD) 的羊羔每天体重增加,而来自多母 (LMD) 的羊羔体重下降 (p=0.0005).
在断奶后的最初几天里,LMD羔羊的放牧/站立频率较低,发声/步行/走路频率较高 (p<0.05).
母亲的经验影响了行驶距离和平均每日速度的昼夜节律 (p<0.05).

结论:

母亲的经验显著影响羔羊对断奶压力的生理和行为反应.
来自多母的羔羊在断奶期间表现出更明显的压力迹象.
了解这些影响对于改善绵羊福利和管理实践至关重要.

关键词:

身体重量体重体重放牧草地放牧草地放牧草地节奏节奏是指节奏的节奏.血清蛋白质是一种血清蛋白质.绵羊是一种羊.发音的表达方式

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