菌益生菌对体发酵和Angus牛群微生物群的影响
Lijun Wang1, Maolong Li2, Chaoqi Liu1
1College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China.
Animals : an open access journal from MDPI
|September 27, 2025
概括
用复杂益生菌 (CPs) 补充Angus牛的料3g·kg-1改善了营养消化能力和挥发性脂肪酸水平. 这种真菌益生菌策略增强了反动物的原蛋白和纤维素消化.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 类动物营养 类动物营养
背景情况:
- 菌益生菌具有作为反动物料添加剂的潜力,但需要进一步研究.
- 了解它们对牛消化和肠道微生物群的影响对于优化料效率至关重要.
研究的目的:
- 评估Aspergillus oryzae和Trichoderma longibrachiatum复合益生菌 (CPs) 在早期肥期间对Angus牛的影响.
- 确定CP的最佳剂量,以改善营养物质的消化能力和小麦芽发酵.
主要方法:
- 80只安格斯牛被分配到四个组,接受60天的混合配给 (TMR) 和不同的CP (0,1.0,2.0,或3.0g·kg-1 DM).
- 分析了明显的消化能力,乳头挥发性脂肪酸 (VFA),pH值和便微生物组成.
主要成果:
- 补充3.0g·kg-1CP显著增加了以太提取物,和酸洗纤维 (ADF) 的明显消化能力.
- 较高的CP增加了酸盐,酸盐,酸盐和总VFA,同时降低了皮的pH值.
- CP改变了肠道微生物群,增加了像Solibacillus和Planococcaceae_Bacillus这样的有益细菌,与改善营养消化有关.
结论:
- 复杂益生菌 (CPs) 有效地提高了安格斯牛的营养素消化能力和乳头发酵.
- 对于早期肥的安格斯牛来说,最佳的CP剂量是3g·kg-1的干物质.
- 通过调节特定的肠道微生物种群,CPs可以改善原蛋白和纤维素的消化.
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