奶牛的牛奶产量和甲排放量在生产或炼牧场上的奶牛中,配有自动奶系统
Quentin Lardy1, Haldis Kismul2, Shelemia Nyamuryekung'e2
1Department of Grassland and Livestock, Norwegian Institute of Bioeconomy Research (NIBIO), N-1431 Ås, Norway; Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences, S-907 36 Umeå, Sweden.
Journal of dairy science
|July 10, 2025
概括
为奶牛提供放牧的机会可以减少肠道甲排放和乳制品生产的碳足迹. 这项研究发现,即使是季节性放牧,也可以降低甲,而不会影响能量校正的牛奶产量.
科学领域:
- 动物科学动物科学
- 环境科学 环境科学
- 农业科学 农业科学
背景情况:
- 在奶牛的饮食中包括牧场可以减少肠道甲排放.
- 季节性牧场进入对乳制品生产和排放的影响较少研究.
研究的目的:
- 评估牧场进入对奶牛表现和肠道甲排放的影响.
- 比较生产牧场与哺乳期挪威红牛的运动牧场.
主要方法:
- 用32只哺乳母牛 (158 DIM) 进行交换设计.
- 处理方法:24小时生产牧场 (≥50%DMI来自草) 与运动牧场与室内料养.
- 记录了牛奶产量,料摄入量和肠道甲排放量 (绿色料系统).
主要成果:
- 生产放牧的奶牛的奶频率和产量较低,但牛奶固体度较高.
- 在生产牧场上的奶牛的肠道甲排放量显著降低.
- 经过能量校正的牛奶产量没有受到生产牧场访问的影响.
结论:
- 季节性放牧机会可以减少乳制品的碳足迹.
- 将牧场整合到奶牛的饮食中,可以为环境带来好处.
- 生产牧场管理是可持续奶牛养殖的关键.
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