ArticleBMC genomics2025
Comparative study on the rumen microbial communities and functions between Wagyu and Holstein calves.
Article in BMC genomics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Comparison of dried and liquid direct-fed microbial (MYLO) on liveweight gain and carcass performance in feedlot cattle.Translational animal science · 2026Article
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10 authors.
Funding
Abstract
backgroundUnderstanding the rumen microbiota's development in calves is essential for optimizing breed-specific feeding strategies. This study aimed to comparatively investigate the dynamic changes in the rumen microbial community structure and function in Wagyu and Holstein calves.
methodsFive 3-month-old Wagyu calves and five age-matched Holstein calves were selected. All animals received the same diet consisting of concentrate and hay, with free access to feed and water. Rumen fluid samples were collected monthly from 3 to 6 months of age. Metagenomic sequencing was performed to assess microbial composition (phylum and genus levels), alpha diversity (Shannon, Simpson, ACE, and Chao1 indices), and functional pathway (KEGG-based).
resultsThe cumulative relative abundance of dominant taxa at both phylum and genus levels declined with age in both breeds, more markedly in Wagyu calves than in Holsteins. From 3 to 6 months of age, the top five phyla combined dropped by 3.25% in Wagyu and 0.87% in Holstein calves, whereas the top ten genera combined decreased by 1.63% and 0.63%, respectively. Alpha diversity in Wagyu calves increased significantly with age. At 5 and 6 months, the Shannon, ACE, and Chao1 indices were significantly higher than those at 3 months (P < 0.05). Moreover, from 4 to 6 months, Wagyu calves consistently exhibited significantly higher diversity indices than Holsteins (P < 0.05). At 6 months, Wagyu calves showed a significant reduction in metabolism-related microbial genes and an increase in genes related to cellular processes and genetic information processing compared to earlier ages and Holstein calves (P < 0.05).
conclusionsThese findings suggest potential breed-specific differences in the succession and functional maturation of rumen microbiota. Holstein calves developed earlier and more stable metabolic functions, while Wagyu calves underwent a more dynamic microbial selection process. CLINICAL TRIAL NUMBER: Not applicable.
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