具有不同的发酵特征的菌注射剂对商业藻类混合物的体外发酵模式产生不同的影响
Cátia S C Mota1, Margarida R G Maia1, Inês M Valente1,2
1REQUIMTE, LAQV, ICBAS, School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal.
Frontiers in veterinary science
|March 26, 2024
概括
动物注射剂的来源显著影响藻类混合物的体外发酵. 使用来自养草饮食的奶牛的注射剂减少了气体和甲的产生,突出了注射剂的注射剂.
科学领域:
- 流体微生物学 流体微生物学
- 动物营养动物营养
- 可持续料评价 可持续料评价
背景情况:
- 试管体内皮批量技术对于评估新型料来源至关重要.
- 不适应的反动物注射剂对非传统料的体外发酵能力的影响尚不清楚.
研究的目的:
- 为了研究不同反动物注射剂对可持续藻类混合物的体外发酵的影响.
- 评估不同藻类混合物补充水平对发酵参数的影响.
主要方法:
- 从荷尔斯坦牛中产生了四种不同的反动物注射剂,这些牛被食不同的料饮食 (玉米料和料).
- 一种藻类混合物 (微藻和海藻) 补充了0-15%的玉米料和料混合物.
- 在体外化过程中,使用4x4的因子设计进行了化,每种注射剂和藻类混合水平为24小时.
主要成果:
- 来自养基于草的饮食的奶牛的注射剂减少了总气体和甲的产量.
- 发酵pH和氨-N含量受到注射源的影响,而不是藻类补充.
- 总挥发性脂肪酸 (VFA) 产量随着藻类混合物水平的增加而下降,在注射剂和补充剂之间存在显著的相互作用.
结论:
- 动物注射剂的来源是非传统料发酵性体外评估的关键因素.
- 评估的藻类混合物显示出作为食者发酵过程的自然调节器的潜力.
- 需要进一步的研究,以优化基于注射体特征的藻类混合物的使用.
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