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在混合绵羊羊群中基于ASReml早期遗传参数的估计

Haifeng Wang¹, Shanning Jin², Zhenfei Xu¹

¹Chinese Academy of Agricultural Sciences, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Lanzhou, China.

Animal biotechnology

|August 2, 2024

概括

诸如出生月份和类型等非遗传因素显著影响混合羊肉绵羊的早期生长. 考虑到母性影响,可以提高育种计划的遗传参数准确度.

科学领域:

动物遗传学动物遗传学
量化遗传学量化遗传学
羊的繁殖羊的繁殖

背景情况:

早期的生长特征对于绵羊的生产力至关重要.
混合化策略旨在改善增长和发展.
了解非遗传影响对于准确的遗传评估至关重要.

研究的目的:

分析非遗传因素对混合绵羊早期生长遗传参数的影响.
为优化杂交和繁殖计划提供理论基础.
为了提高优质杂交羊肉羊的选择.

主要方法:

使用ASReml软件进行遗传参数估计.
调查的南胡 (SH) 和多胡 (DH) 杂交羊.
开发了60天和180天体重的体重校正公式.

主要成果:

出生月份和出生类型显著影响了所有早期生长特征 (p < 0.001).
对母体影响的遗传性估计范围从0.0709到0.1859.
无论是SH还是DH羊,都显示出快速早期成长的潜力.

结论:

杂交绵羊的早期生长受到母亲遗传效应的显著影响.
必须考虑对母亲的影响,以提高遗传参数估计的准确性.
纳入母性影响将提高羊肉羊的繁殖计划的成功.

关键词:

ASRRemlll 在线阅读混合羊肉羊的混合羊肉.校正公式是一个校正公式.遗传参数估计遗传参数估计增长曲线的增长曲线其他非遗传因素.

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