Microbiome analysis reveals dynamic changes of gut microbiota in Guizhou horse and Dutch Warmblood horses
Authors: Lan Yanfang, Li Yaonan, Wang Yang
Journal: Frontiers in Microbiology
Summary
# Editorial Summary Guizhou horses and Dutch Warmblood horses, despite sharing similar major bacterial and fungal phyla, exhibit distinctly different gut microbiota profiles that reflect both breed genetics and likely management practices. Using 16S rRNA sequencing on faecal samples, researchers compared the microbial communities of these two breeds and found that Warmbloods carried significantly higher bacterial abundance but substantially lower fungal populations compared to the native Guizhou breed. Functional analysis of bacterial genes predicted that Dutch Warmbloods possess enhanced capacity for glycan biosynthesis and carbohydrate metabolism—traits that may relate to their selection for performance under grain-supplemented diets—while Guizhou horses showed different metabolic priorities potentially reflecting their adaptation to forage-based systems. These breed-specific microbiota differences have practical implications for nutritional management; a one-size-fits-all feeding approach may be suboptimal, and imported performance horses may require different dietary strategies or transition protocols than native breeds to optimise digestive efficiency and health. Understanding these microbial distinctions could inform more targeted recommendations for parasite control, probiotic interventions, and feed formulation across different horse populations.
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Practical Takeaways
- •Gut microbiota composition differs substantially between horse breeds; imported horses like Dutch Warmbloods may have different digestive capabilities than native breeds like Guizhou horses
- •Understanding breed-specific microbiota differences could inform nutrition and feeding management strategies, particularly when introducing imported horses to new environments
- •Breed origin and genetic background appear to influence microbiome structure and function, which may affect digestive efficiency and metabolic capacity
Key Findings
- •Dutch Warmblood horses showed significantly higher bacterial abundance but lower fungal abundance compared to Guizhou horses
- •Principal coordinate analysis revealed distinct differences in both bacterial and fungal community structure between the two breeds despite sharing similar major phyla
- •Dutch Warmblood horses demonstrated enhanced glycan biosynthesis and metabolism capabilities with predicted more robust digestive systems
- •Significant differences were observed in numerous bacterial and fungal genera between Guizhou and Dutch Warmblood horses