发酵总混合料增强营养消化能力,调节哺乳期荷尔斯坦奶牛的牛奶成分和便微生物群体
Lijun Wang1, Sanjun Jin1, Ping Wang1
1College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China.
Frontiers in veterinary science
|August 29, 2024
概括
发酵总混合 (FTMR) 提高了奶牛的料效率和牛奶脂肪含量. 此外,FTMR还提高了营养物质的消化能力,增加了有益的便古生物多样性.
科学领域:
- 动物科学动物科学
- 乳制品营养 乳制品营养
- 微生物学 微生物学
背景情况:
- 发酵总混合配给 (FTMR) 提供了一种保存高湿度副产品的方法,增强有氧稳定性,并可能改善牛的生产.
- FTMR可以满足日常营养需求,并提高牛的表现.
研究的目的:
- 为了研究FTMR对哺乳表现,全道表面消化能力,便微生物群和哺乳乳奶牛的发酵概况的影响.
主要方法:
- 十二只正在哺乳的奶牛被分为两组:一组被养标准总混合食 (TMR),另一组被养FTMR.
- 评估的牛奶产量,牛奶脂肪含量,干物质摄入量,料效率,营养消化能力 (NDF,OM,DM,CP,ADF),便特征 (pH,丁酸盐) 和便古物群体结构 (Chao1,ACE,Shannon指数,LefSe分析).
主要成果:
- FTMR没有影响牛奶产量,但通过减少干物质摄入量,增加了牛奶脂肪含量和料效率.
- FTMR显著改善了NDF,OM,DM,CP和ADF的全道表面消化能力.
- FTMR增加了便中的丁酸盐度和降低了便的pH值,同时显著增强了便中古生物的多样性,包括特定的有益细菌,如*Oscillospira*和*Lactobacillus*.
结论:
- 食FTMR可以提高牛奶脂肪含量,提高整体料消化效率,并促进乳牛的便古物多样性.
- 这项研究提供了一个支持使用FTMR作为乳牛可行的养策略的科学基础.
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