放牧马的料摄入量,消化能力和通路动力学
Martin Bachmann1, Mandy Bochnia2, Monika Wensch-Dorendorf2
1Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany. martin.bachmann@landw.uni-halle.de.
Scientific reports
|January 22, 2026
概括
使用植物基在牧场上估计马的料摄入量和消化能力,为营养供应提供了宝贵的见解. 这项研究成功地通过追踪马的运动来评估有机物摄入量和消化能力,即使数据有限.
科学领域:
- 马的营养 马的营养
- 动物科学动物科学
- 消化能力研究 消化能力研究
背景情况:
- 由于复杂的食行为,评估牧场上的马的料摄入量和消化能力是具有挑战性的.
- 营养供应对马的健康至关重要,准确的摄入量/消化能力测量至关重要.
- 马的食行为涉及到复杂的搜索,选择,和不断移动的模式.
研究的目的:
- 估计每天24小时在牧场放牧的马的有机物摄入量 (OMI) 和有机物消化率 (OMD).
- 使用植物基分泌和合成n-hexatriacontane (C36) 作为摄入量和消化率估计的标记物.
- 调查旅行活动对牧场马的肠道通道和料消化的影响.
主要方法:
- 使用植物基和合成n-hexatriacontane (C36) 来评估标记物的分泌.
- 使用多分区模型估计C36的平均保留时间 (MRT).
- 在白天 (13小时/天) 使用GPS跟踪马的行程,以与消化过程相关联.
主要成果:
- 估计的OMI范围为1.4至2.8%的体重 (BW) /天,类似于每天1.5至3.1%的干物摄入量 (DMI).
- 估计的OMD在0.45到0.68之间,干物质消化率 (DMD) 在0.39到0.65.6之间.
- 与文献价值相比,n-诺纳可 (C29) 和n-亨特里亚可 (C31) 提供了最合理的消化率估计.
结论:
- 基于基的方法,特别是使用C29,似乎可靠地评估马类料摄入量和牧场上的消化能力.
- 通过GPS跟踪的马的运动会影响消化道,这凸显了在营养研究中考虑活动的重要性.
- 在现代养殖系统中允许不受限制的食行为对于满足马的自然行为需求至关重要.
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