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一种修改后的间接方法,用于计算近亲繁殖系数.

Che Hsuan Huang1, Seijiro Hirama2, Toshimi Baba3

  • 1Division of Dairy Production Research, Hokkaido Agricultural Research Center, NARO, Sapporo, 062-8555, Japan.

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概括
此摘要是机器生成的。

一种新的间接方法显著加快了对大型牲畜种群的内生系数的计算. 这种增强的算法提高了效率,对于人工授精育种计划来说是实用的.

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科学领域:

  • 动物遗传学动物遗传学
  • 量化遗传学 量化遗传学
  • 计算生物学 计算生物学

背景情况:

  • 计算内生系数的现有方法在内存使用,血统深度和家庭规模方面存在局限性.
  • 这些局限性阻碍了大型畜牧种群的高效计算.

研究的目的:

  • 提出一种修改后的间接方法,用于有效计算同胞繁殖系数.
  • 为了应对大型血统和深层次的祖先信息所带来的计算挑战.

主要方法:

  • 开发一种经过修改的间接算法,以识别,计算和存储用于计算近亲繁殖系数所需的元素.
  • 在一个大数据集上测试算法,其中包括860万个具有广泛血统信息的日本Holstein.

主要成果:

  • 与以前的间接方法相比,修改后的间接方法大大减少了计算时间,从103.4秒减少到7.2秒.
  • 与32个线程并行将计算时间进一步缩短至1.1秒.
  • 该方法证明了对血统深度和家族规模的变化具有稳定性.

结论:

  • 拟议的修改间接方法为计算内生系数提供了显著的计算改进.
  • 它的效率和可扩展性使其非常适用于管理大型牲畜群体,特别是那些使用人工授精的牲畜群体.