ArticleMicroorganisms2026
Alterations in Vaginal Microbiota Associated with Pregnancy Outcomes in Dairy Cows Revealed by 16S rRNA Gene Sequencing.
Article in Microorganisms, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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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Authors and funding
10 authors.
Funding
Abstract
Early embryonic loss remains a major limitation to reproductive efficiency in dairy cows, with approximately 30-40% of embryonic mortality occurring within 21 days after artificial insemination (AI), ultimately reducing conception rates and economic profitability in dairy production. Increasing evidence suggests that reproductive tract microorganisms may contribute to pregnancy establishment; however, their functions during early gestation in dairy cows remains poorly understood. In this study, 16S rRNA gene amplicon sequencing was used to characterize vaginal microbiota profiles in multiparous Holstein dairy cows at 7.5 and 21 days after AI, with comparisons performed between pregnant and non-pregnant cows. Significant differences in microbial community structure were observed between pregnancy states. At 7.5 days post-AI, distinct differences in microbial composition were detected at the phylum level, with
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