对于荷尔斯坦乳牛来说,化糖和翅膀的料特性和对食细菌的潜在影响
Y Yen1, M R Weisbjerg2, Y Abdelhafiz1
1Faculty of Biosciences and Aquaculture, Nord University, 8026 Bodø, Norway.
Animal : an international journal of animal bioscience
|August 31, 2024
概括
海藻料,特别是S. latissima,显示出作为奶牛料成分的前景. Ensiled S. latissima提供与料相比较的消化能力,并可能减少奶牛的甲排放.
科学领域:
- 动物科学动物科学
- 海洋生物学 海洋生物学
- 微生物学 微生物学
背景情况:
- 海藻为奶牛提供了潜在的替代料成分.
- 调查营养消化能力和反动物细菌组成对于评估海藻料有效性至关重要.
研究的目的:
- 评估两种海藻 (S. latissima和A. esculenta) 和它们的料的营养消化能力.
- 分析海藻对反动物细菌组成和甲生产潜力的影响.
主要方法:
- 海藻 (S. latissima,A. esculenta) 通过冷或使用不同添加剂结而保存.
- 用标准方法确定营养物质的消化能力.
- 在用海藻进行体外化后,使用16S rRNA测序和qPCR分析了鲁米纳菌的细菌组成.
主要成果:
- S. latissima的消化能力高于A. esculenta,保存方法的影响最小.
- S. latissima的干燥物质可降解性与常规料相比,但原始蛋白质的消化能力较低.
- 海藻的加入改变了反动物的细菌组成,有利于Prevotella和纤维分解性细菌,并减少了甲生产的指标.
结论:
- 化S. latissima是一种可行的替代性料类成分,适用于奶牛.
- 奶牛的S. latissima消费可能会带来甲减排的好处.
- 由于A. esculenta的原蛋白含量低,因此不适合作为奶牛的主要营养来源.
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