微量矿物质来源影响挥发性脂肪酸概况和体微量矿物质溶解度在料场牛中
Huey Yi Loh1, Octavio Guimaraes2, Meghan P Thorndyke2
1Department of Animal Sciences, Colorado State University, Fort Collins, CO 80523, USA.
Animals : an open access journal from MDPI
|May 14, 2025
概括
与硫酸盐来源相比,氧微量矿物质 (TM) 改善了的发酵和矿物释放. 营养物质的消化能力不受影响,但氧微量矿物质改变了牛的挥发性脂肪酸概况.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 微量矿物质的新陈代谢
背景情况:
- 微量矿物质对于反动物的健康和生产力至关重要.
- 微量矿物质的来源 (硫酸盐与酸盐) 可以影响其生物可用性和有效性.
- 了解这些差异对于优化动物饮食至关重要.
研究的目的:
- 评估硫酸盐 (STM) 和氧化 (HTM) 微量矿物质来源对营养素消化能力和小麦芽发酵的影响.
- 根据不同的TM来源来评估乳头微量矿物质的溶解度和结合强度.
- 为了比较STM和HTM对反动物挥发性脂肪酸 (VFA) 概况和矿物质释放的影响.
主要方法:
- 两项涉及管安格斯牛的实验养了高度饮食.
- 实验1:评估营养消化能力和以不同水平的从STM或HTM补充Cu,Mn和Zn的起草机发酵.
- 实验2:在24小时内给出了TM治疗的脉冲剂量,并采集了体样本,以测量矿物质的溶解性和释放性.
主要成果:
- 微量矿物质来源没有影响营养物质的消化能力.
- 与硫酸盐来源相比,基微量矿物质增加了酸盐和减少了酸盐的比例.
- 硫酸盐微量矿物质导致了更高的可溶性Cu度.
- 与硫酸盐来源相比,基微量矿物质在消化过程中释放的Cu和Zn较大,Mn的释放较低.
结论:
- 微量矿物质的来源显著地影响了乳头发酵特性和矿物质释放模式.
- 氧化微量矿物质可能在改变VFA概况和改善体中的Cu和Zn可用性方面具有优势.
- 需要进一步的研究,以充分阐明不同微量矿物质来源对反动物表现的长期影响.
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