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August 19, 2026Veterinary SciencesOpen Access

Integrated Multi-Omics Reveals Gut Microbiota-Ovarian Crosstalk of Laying Performance Between High- and Low-Laying Muscovy Ducks

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Authors

XDXiujun DuanJiangsu Agri-animal Husbandry Vocational CollegeRZRui ZhuJiangsu Agri-animal Husbandry Vocational CollegeYBYouqing BianJiangsu Agri-animal Husbandry Vocational College

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Implication

Comparative multi-omics analysis reveals gut microbiota-ovarian crosstalk linked to egg production in Muscovy ducks, suggesting targets to enhance poultry reproductive performance.

Key Points

  • To elucidate the physiological, transcriptomic, and gut microbial mechanisms driving individual variation in egg-laying performance in Muscovy ducks.
  • Monitored 40-day egg production and evaluated ovarian and follicular morphology in high- and low-laying black-feathered Muscovy ducks.
  • Performed ovarian RNA sequencing to profile differentially expressed genes and functional pathway enrichment.
  • Conducted cecal 16S rRNA gene amplicon sequencing to determine microbial community composition and correlated taxa with reproductive gene expression.
  • High-laying ducks produced significantly more eggs over 40 days than low-laying ducks (24.60 ± 9.22 vs. 15.80 ± 6.64, p < 0.01) and exhibited larger ovaries with greater follicle numbers across all stages.
  • Transcriptomics identified 823 differentially expressed genes enriched in ovarian physiology pathways, including MAPK, Calcium, Notch, and Wnt signaling.
  • High-laying ducks displayed an elevated Firmicutes/Bacteroidota ratio, decreased Ligilactobacillus abundance correlated with Arhgap27 and HOXA10 expression, and shared enrichment of the glycolysis/gluconeogenesis pathway.

Cite This Study

Duan et al. (2026) studied this question.

synapsesocial.com/papers/6a85638803308d306e2d6b7ahttps://doi.org/10.3390/vetsci13080816
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