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宏观藻类化合物特性及其对补充羔羊的菌微生物群的影响
Adriana Guadalupe De la Cruz Gómez1, Huitzimengari Campos-García2, German D Mendoza3
1Facultad de Agronomía y Veterinaria, Centro de Biociencias, Instituto de Investigaciones en Zonas Desérticas, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78321, Mexico.
Veterinary sciences
|December 27, 2024
概括
海洋大藻类富含VOC等生物活性化合物,可显著改变羊羔的肠微生物组合. 这项研究强调了特定的藻类.
科学领域:
- 海洋生物学 海洋生物学
- 动物营养动物营养
- 微生物组研究的研究.
背景情况:
- 功能和微生物群对于牲畜健康和生产力至关重要.
- 不同种类的宏藻对体微生物群落的影响尚不清楚.
- 海洋大藻含有独特的生物活性化合物,具有潜在的调节作用.
研究的目的:
- 在三种宏藻中识别生物活性化合物:Macrocystis pyrifera (棕色),Ulva spp. (乳糖) 和马泽拉菌种 (Mazzaella spp.). (红色). 这是红色的.
- 为了研究这些大藻类对Rambouillet羔羊的肠微生物组合的影响.
- 为了将藻的化学成分与观察到的菌细菌的变化相关联.
主要方法:
- 宏观藻类使用气体染色学质谱法 (GC-MS) 分析生物化合物.
- 十二只羔羊被食控制或饮食补充了5g的红色,棕色或生菜藻.
- 液被收集用于16S rRNA基因V3片序列测序,以分析微生物群落.
主要成果:
- 在所有群体中都确定了主要的菌细菌类 (Firmicutes, Bacteroidota).
- 大藻类补充剂显著改变了这些主导细菌群体的相对丰度.
- 纤维溶解和纤维溶解细菌的丰富性,特别是Selenomonas,在养大藻类的羔羊中增加.
- 在宏观藻类中发现了诸如乙醇,β-himachalene和4-ethylphenol之类的挥发性有机化合物 (VOC).
结论:
- 海洋大藻含有多种生物活性化合物,包括具有抗微生物和发酵调节特性的VOC.
- 大藻类的补充可以选择性地调节 rumen 微生物群,有利于像Selenomonas这样的有益细菌.
- 这项研究提供了关于使用大藻作为料添加剂来影响皮功能和潜在地提高牲畜表现的见解.
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