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检测与在simmental双重用途奶牛牛奶奶期间的行为反应相关的遗传变异
Madalina Mincu-Iorga1, Alexandru Eugeniu Mizeranschi2,3,4, Dinu Gavojdian1
1Research and Development Institute for Bovine, 077015 Balotesti, Romania.
Animals : an open access journal from MDPI
|June 26, 2025
概括
遗传标记物影响双重用途的simmental牛的挤奶行为. 这项研究支持选择气质和幸福感,以及牛养殖中的生产.
科学领域:
- 动物遗传学动物遗传学
- 动物行为 动物行为
- 畜牧养殖 畜牧养殖 畜牧养殖
背景情况:
- 传统的牛养殖优先考虑生产特征.
- 越来越多的人对动物福利感兴趣,需要选择健壮的动物,以平衡生产力和健康.
- 了解气质的遗传基础对于改善牛群福祉至关重要.
研究的目的:
- 调查双重用途Simmental牛的挤奶行为和遗传标记之间的关联.
- 为了确定以前识别的与气质相关的遗传标记是否与该品种的哺乳反应性有关.
- 探索将行为特征纳入未来牛选择策略的潜力.
主要方法:
- 评估了 185 头哺乳期西蒙特尔 (罗马尼亚斑点) 奶牛的哺乳行为.
- 用88-SNP面板对牛进行基因定型,该面板已知与奶牛和肉牛的气质有关.
- 分析数据以识别与奶反应相关的显著单核酸多态 (SNP).
主要成果:
- 在罗马尼亚斑点犬品种中发现了五个与奶反应性显著相关的SNP.
- 这些SNP位于以前与神经发育,应激反应和行为调节相关的基因 (USH2A,ADAMTS7,TBC1D2B,ZMAT4) 中.
- 这种双重用途的品种的挤奶行为明显受到遗传因素的影响.
结论:
- 双重用途的simmental牛的挤奶行为有一个遗传组成部分.
- 与气质相关的遗传标记可以在双重用途品种中确定.
- 研究结果支持将行为特征纳入牛养殖计划,以提高动物福利和强度.
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