饮食能量来源影响健康马的头和便微生物群
Laura A Brandi1, Alanne T Nunes2, Camila A Faleiros2
1Department of Animal Science, School of Animal Science and Food Engineering (FZEA), University of São Paulo (USP), Pirassununga 13635-900, São Paulo, Brazil.
不同的马类饮食会改变肠道细菌,影响便的多样性. 虽然研究的饮食似乎是安全的,但需要进一步的研究来了解它们对马的胃肠道微生物群的长期影响.
科学领域:
- 马的营养 马的营养
- 微生物组研究 微生物组研究
- 胃肠道健康 胃肠道健康
背景情况:
- 饮食能量来源显著影响马的健康和表现.
- 了解饮食对马和便微生物群的影响对于优化营养至关重要.
- 之前的研究突出了饮食与各种物种肠道微生物组成之间的联系.
研究的目的:
- 为了研究不同的食能量来源 (花草,花草+粉/糖,花草+纤维/油) 如何影响马的脏和便微生物群.
- 分析这些饮食对短链脂肪酸,pH和缓冲容量的影响.
- 确定特定微生物种群和饮食干预措施之间的关系.
主要方法:
- 使用高通量测序和定量PCR (qPCR) 来分析便和便微生物群组成.
- 在三种受控饮食条件下,从五匹健康的马身上收集并分析了便样本.
- 测量发酵参数,包括短链脂肪酸,pH值和缓冲容量.
主要成果:
- 只有花草饮食 (HAY) 导致便pH值更高,便α多样性更低.
- 用粉/糖 (SS) 和纤维/油 (FO) 补充的饮食改变了眼膜和便中的特定细菌群的丰富性.
- 观察到微生物组成的显著差异,HAY与Treponema和Fibrobacter相关,SS与Desulfovibrio和Streptococcus相关,FO与Prevotella和Akkermansia相关.
结论:
- 饮食能量来源显著影响马和便微生物群的组成和多样性.
- 在实验条件下,研究的饮食似乎不会导致发酵过程的显著负面变化.
- 需要进一步的研究,以将这些发现推广到更广泛的马群中,并评估长期的健康影响.
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