用甲生产数据进行肉牛遗传预测:一篇综述
Elizabeth A Dressler1, Jennifer M Bormann1, Robert L Weaber1
1Kansas State University, Department of Animal Sciences and Industry, Manhattan, KS 66506, USA.
Translational animal science
|February 19, 2024
概括
来自牛肠发酵的甲 (CH4) 对可持续性产生影响. 本综述涵盖了影响CH4生产的因素,遗传评估的量化方法以及肉牛的遗传参数.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 动物科学动物科学
背景情况:
- 来自反动物肠道发酵的甲 (CH4) 是一个重要的温室气体,影响牛肉行业的环境,社会和经济可持续性.
- 碳化合物生产受到皮的特征和料成分的影响,这对有效的畜牧管理构成了挑战.
研究的目的:
- 审查影响肉牛甲产生的因素.
- 讨论用于基因评估的量化CH4生产的方法.
- 检查肉牛中CH4生产的遗传参数.
主要方法:
- 对牛中CH4产生的现有文献的综述.
- 分析各种量化方法:呼吸热度计,SF6追踪技术,红外光谱学,预测模型和GreenFeed系统.
- 检查评估准确性和比较不同CH4测量技术的研究.
主要成果:
- 诸如乳头环境和饮食成分等因素显著影响CH4排放.
- 存在多种CH4量化方法,每种方法在遗传评估中都有独特的优点和缺点.
- 根据使用的测量方法,对CH4生产的可遗传性估计有所不同.
结论:
- 将CH4排放特征纳入选择指数可以帮助生产者平衡环境可持续性与生产力.
- 准确量化CH4对于有效的肉牛遗传改进至关重要.
- 需要进一步的研究来协调不同测量技术的不同遗传概率估计.
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