确定泰国原生的优先精液特征和适合基因改进的年龄
Jiraporn Juiputta1, Wipas Loengbudnark1, Thirawat Koedkanmark1
1Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand.
PloS one
|April 2, 2025
概括
选择具有高精液质量的年轻泰国本土公 (32-52周) 可以提高生殖效率. 一个新的选择指数确定了育种计划的最佳候选人,促进了本地生产.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 动物遗传学动物遗传学
- 生殖生物学 生殖生物学
背景情况:
- 精液特征对于本地的繁殖成功和生产效率至关重要,对泰国可持续的家禽系统至关重要.
- 评估精液特征,如质量运动,pH值,体积,活力,异常和度,是评估泰国原生祖父母生殖表现的关键.
- 提高本土的繁殖效率,通过提高生育率,化能力和生产率,有利于小农.
研究的目的:
- 为了比较子年龄组的精液特征.
- 估计精液特征的遗传参数和繁殖值.
- 开发一个最佳的选择指数,以改善泰国原生祖父母的精液质量.
主要方法:
- 分析了来自泰国本土祖父母 (Pradu Hang Dum) 的3475个测试日记录.
- 使用了一个具有多个特征的动物模型,平均信息限制最大概率 (AI-REML).
- 估计不同年龄组的六种精液特征之间的遗传性,重复性和遗传相关性.
主要成果:
- 对所有精液特征的低遗传率估计 (0.0430.161) 和低到中等的重复率 (0.1190.384).
- 精液量,质量运动和精子度被确定为基于遗传性和遗传相关性的最重要的特征.
- 最年轻的年龄组 (32-52周) 显示了最高的选择指数值,表明了优越的遗传改进潜力.
结论:
- 的年龄显著影响精液质量,年轻的鸟类显示出更大的潜力.
- 使用开发的选择指数,针对前10%的年轻公的选择性繁殖计划可以加速精液特征的遗传进步.
- 这些发现支持对热带条件下的本地进行增强的遗传评估和可持续的育种计划.
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