个体肉牛牛的水摄入量表征
Nathan E Blake1,2, K E ArunKumar1,2, Matthew Walker2,3,4
1School of Agriculture and Food Systems, Davis College of Agriculture and Natural Resources, West Virginia University, Morgantown, WV, USA.
Journal of animal science
|February 22, 2026
概括
牛肉牛的饮用水量因种类,品种和环境而异. 目前的模型需要更新,以反映可持续牛肉生产的这些因素.
科学领域:
- 动物科学动物科学
- 农业工程 农业工程
- 环境科学 环境科学
背景情况:
- 目前的肉牛用水摄入 (WI) 模型是基于有限的,过时的数据.
- 诸如动物类,品种,生产系统和环境等因素显著影响WI.
- 需要更全面的数据来开发准确的WI预测模型.
研究的目的:
- 分析一大批肉牛WI,干物摄入量 (DMI) 和体重 (BW) 的大型数据集.
- 确定不同牛群和环境中影响WI的关键因素.
- 挑战现有的WI建议,并倡导更新的,情境敏感的模型.
主要方法:
- 分析了来自10个肉牛品种的超过13万份每日记录.
- 包括五年来牧场和干草生产系统的数据.
- 统计分析以确定动物类,品种,生产系统和温湿度指数 (THI) 在WI上的重要性.
主要成果:
- 根据动物类 (公牛,公牛,公牛) 和品种 (红色格斯,利莫辛) 显著变化.
- 干牛比放牧牛消耗更多的水,WI随着热量负荷的增加 (THI ≥90) 增加.
- WI和BW或DMI之间的关系很弱 (R2 = 0.06),这表明仅仅这些因素的预测能力有限.
结论:
- 现有的肉牛WI模型,如NASEM 2016,可能不准确地反映现实世界消费模式.
- 需要个性化和特定环境的模型来准确估计WI.
- 调查结果支持水效选择,气候适应性和可持续牛肉生产的进展.
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