对5个月大的子的移动性测量的基因组分析与结构稳定性相关
Lexi M Ostrand1, Lea A Rempel2, Brittney N Keel2
1Department of Animal Sciences, University of Nebraska, Lincoln, NE 68588.
Journal of animal science
|January 8, 2025
概括
使用GAIT4和NUtrack系统的客观测量可以预测未来的. 这些遗传性特征有助于早期识别不健康的动物,减少经济损失并改善母猪的福祉.
科学领域:
- 动物科学动物科学
- 遗传学 遗传学 是一个
- 兽医医学 兽医医学 兽医医学
背景情况:
- 种植导致过早除,导致严重的经济损失和动物福利问题.
- 早期识别面临腿风险的,对于改善群体管理和利能力至关重要.
研究的目的:
- 为了确定客观的步态和运动测量在吉尔特预测未来和终身健康.
- 估计这些预测测量的遗传性,并确定相关的基因组区域.
主要方法:
- 使用GAIT4压力感应和NUtrack视频监控系统在3,656个身上.
- 根据生命周期的健全性进行分类的吉尔特 (SOUND,LAME_SOW,CULL_STR,LAME_GILT,CULL).
- 通过使用血统和SNP数据进行混合模型分析和ssGBLUP,以估计遗传性和确定重要的基因组区域.
主要成果:
- GAIT4特征 (GLS的SD,步伐长度,姿势时间) 和NUtrack测量 (吃饭,站立,躺着,速度,距离,旋转) 与终身健康相关.
- 遗传概率估计为NUtrack特征大约为0.3,GAIT4特征大约为0.2.
- 在47个基因组区域中确定了382个显著的SNP效应,其中主要的关联在染色体1,4,11和14上.
结论:
- 5个月大时GAIT4和NUtrack系统的客观测量是可遗传的,可以预测母猪一生的健康状况.
- 这些客观措施可以用于识别和选择容易的动物,改善动物健康和经济结果.
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