孕期直接养微生物补充对产前乳牛代谢概况的影响
Orlando Ramirez-Garzon1,2, David Barber3, Loreto Meneses4
1Terragen Biotech Pty Ltd., Coolum Beach, QLD 4573, Australia.
Animals : an open access journal from MDPI
|October 26, 2024
概括
在孕期养奶牛以乳酸细菌为基础的直接养微生物 (DFM) 改善了它们的新陈代谢概况,并增加了体重. 这种干预措施也导致了更高的平均牛奶产量,在牛奶中110天.
科学领域:
- 动物科学动物科学
- 乳制品营养 乳制品营养
- 动物的新陈代谢
背景情况:
- 围产乳牛经历了重要的代谢挑战.
- 直接养微生物 (DFM) 用于调节牲畜的肠道健康和新陈代谢.
- 基于乳杆菌的DFM在关键的过渡时期可能会带来好处.
研究的目的:
- 为了评估基于乳杆菌的DFM在孕期养周周的奶牛的影响.
- 评估对代谢概况,牛奶产量和体重的影响.
- 调查代谢标记和生产参数之间的相关性.
主要方法:
- 150头多双的荷尔斯坦牛被分为控制组和DFM组.
- 在孕期和哺乳期,DFM组接受了基于Lactobacillus的补充剂.
- 通过产前和产后收集的血液样本来分析代谢概况.
- 监测了牛奶产量和体重.
主要成果:
- DFM补充剂增加了血清葡萄糖,NEFA和,同时减少了蛋白质和尿素.
- 在分娩前,DFM奶牛的葡萄糖含量较高,总 bilirubin,尿素和 BHB 的含量较低.
- 产后,DFM奶牛的葡萄糖和Mg水平较高.
- DFM奶牛的平均牛奶产量为110 DIM,在DFM奶牛中显著高 (p=0.03).
- DFM奶牛在周围的时间段 (p=0.001) 显示出更大的体重.
结论:
- 在怀孕期间以乳酸菌为基础的DFM养对周围的奶牛的代谢概况产生了积极的影响.
- DFM补充剂可以提高产后牛奶产量和体重.
- 代谢的改善与乳牛的更好的生产结果有关.
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