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研究乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳

Yapin Wang¹, Edoardo Saccenti², Roselinde Goselink³

¹Adaptation Physiology Group, Wageningen University & Research, 6708 WD Wageningen, the Netherlands.

Journal of dairy science

|April 30, 2025

概括

孕期前和孕期期间母牛的特征对雌性后代产生影响.

科学领域:

动物科学动物科学
生殖生物学生殖生物学
牛奶牛的营养牛奶牛的营养

背景情况:

我们对母亲在怀孕期间的特征如何影响雌性后代的终身健康和生产力的理解有限.
研究孕前和孕期特征对母乳母牛的长期发展和表现的影响.

研究的目的:

确定母牛特征 (预孕和孕期) 与其雌性后代的体重,新陈代谢,荷尔蒙,免疫功能,肝酶和牛奶成分之间的关系.
分析这些关系从出生到后代的第一个哺乳期的第一个100天牛奶 (DIM).

主要方法:

154只荷尔斯坦 - 弗里西亚牛被分配到不同的自愿等待期 (VWP).
雌性后代 (n=62) 从出生到第一个哺乳期的100 DIM被监测.
用回归模型分析了变量 (预孕和孕期) 和后代变量,考虑分娩间隔 (CInt),平价和后代年龄.

主要成果:

母乳乳糖和体重 (BW) 怀孕前/怀孕期间与更高的母牛BW和哺乳期后代BW有关.
较高的母体血IGF-I度与后代血IGF-I和胰岛素的增加相关.
母乳产量影响了哺乳期后代的牛奶脂肪,非化脂肪酸和葡萄糖水平.

结论:

孕产妇的预孕和怀孕特征会影响雌性后代的发育和生理参数.
当母婴和后代处于相似的生活阶段 (哺乳期) 时,观察到最强的关联.
了解这些对母体的影响可以为改善乳牛发育和生产力的策略提供信息.

关键词:

胎儿编程胎儿编程是什么?怀孕的时间怀孕的时间产妇对母亲的影响.跨世代效应的影响.

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