基因参数估计的性能特征在伊朗纯血统赛马使用贝叶斯的方法贝叶斯的方法
M Taned1, M B Zandi1, S Salek Ardestani1
1Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran; ZNU Equine Research Center, Faculty of Agriculture, University of Zanjan, Zanjan, Iran.
Journal of equine veterinary science
|November 16, 2025
概括
纯血统赛马的遗传选择显示了比赛完成时间和平均速度的适度潜力,但不利的遗传趋势需要修改繁殖策略以实现长期改善.
科学领域:
- 动物遗传学动物遗传学
- 马类科学 马类科学
- 量化遗传学 量化遗传学
背景情况:
- 纯种种族的表现是由遗传和环境影响所塑造的.
- 了解基因架构对于有效的纯种繁殖计划至关重要.
研究的目的:
- 估计伊朗纯种赛马的关键性能特征的遗传参数和趋势.
- 告知育种策略,以提高基因改进.
主要方法:
- 分析了14391只纯血动物 (2002-2021) 的性能数据 (比赛完成时间,等级,平均速度) 和血统数据.
- 使用贝叶斯方法与吉布斯采样 (gibbs1f90,thrgibbs1f90) 来估计遗传参数.
主要成果:
- 对比赛完成时间 (0.25) 和平均速度 (0.23) 观察到适度的遗传性;对于等级 (0.09) 的低遗传性.
- 遗传趋势揭示了比赛完成时间的不利增加和平均速度的下降.
- 环境因素显著影响了表现,掩盖了遗传变化.
结论:
- 赛事完成时间和平均速度为纯血犬的遗传选择提供了潜在的可能性.
- 排名主要受到环境因素的影响.
- 不利的遗传趋势需要对育种策略进行修订,以获得可持续的遗传收益.
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