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饮食中的非结构性碳水化合物会影响马奶碳水化合物的合成和产量
Morgan B Pyles1, Ashley L Fowler2, Andrea D Crum2
1Department of Agriculture and Natural Resources, University of Minnesota Crookston, Crookston, MN 56716.
Journal of animal science
|June 26, 2025
概括
孕产妇的饮食会影响母马牛奶的成分. 高非结构性碳水化合物 (NSC) 的饮食增加了牛奶产量和总碳水化合物,支持小羊的营养. 排卵后的橄糖水平自然会下降.
科学领域:
- 马的营养和生殖生理学
- 动物科学动物科学
- 乳制品科学 乳制品科学
背景情况:
- 马牛奶对于新生儿小的发育至关重要,提供碳水化合物等必需的营养素.
- 牛奶寡糖提供免疫和微生物群的支持,但影响它们合成的因素不明.
- 了解母乳饮食对母乳成分的作用,对于小的健康至关重要.
研究的目的:
- 研究饮食中非结构性碳水化合物 (NSC) 含量对马牛奶成分和产量的影响.
- 为了确定高NSC与低NSC饮食对马牛奶中总碳水化合物和寡糖的影响.
- 评估母婴饮食对马每日牛奶产量的影响.
主要方法:
- 在怀孕期间,纯血统马匹被分配到高NSC (43.9%) 或低NSC (17.8%) 缩饮食中.
- 牛奶和母乳样本是在分娩后 (21天分娩后) 收集的,用于分析.
- 总碳水化合物和寡糖被量化;每日牛奶产量被测量.
主要成果:
- 吃高NSC饮食的母马显示出更高总牛奶碳水化合物的趋势 (P=0.059).
- 没有观察到饮食对牛奶寡糖的显著影响,但随着时间的推移,产后度下降 (P=0.002).
- 每天的牛奶产量,作为体重的百分比,在被高NSC饮食养的马中显著更高 (P=0.035).
结论:
- 孕产妇的饮食NSC会影响母马的牛奶产量和总碳水化合物含量.
- 饮食管理可以通过母马牛奶影响子的营养供应.
- 需要进一步研究特定的寡糖化合物合成途径.
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