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Updated: Mar 15, 2026

Microdissection and Dissociation of the Murine Oviduct: Individual Segment Identification and Single Cell Isolation
Published on: November 4, 2021
Changes in the Mare Oviduct Across Different Seasons Throughout the Year
Noelia González1, Agatha Varela2, Nacho de Blas1
1Department of Animal Pathology, Faculty of Veterinary Sciences, Instituto Universitario de Investigación Mixto Agroalimentario de Aragón (IA2), Universidad de Zaragoza, Zaragoza, Spain.
Seasonal changes in mare oviducts show limited impact on fertility. While oviductal cellularity correlates with ovarian activity, permeability and pathologies show no clear seasonal link, affecting mare reproductive health.
Area of Science:
- Veterinary Science
- Reproductive Biology
- Equine Reproduction
Background:
- Oviductal pathologies' impact on mare fertility remains unclear.
- Understanding seasonal oviductal changes is crucial for diagnosing fertility issues.
Purpose of the Study:
- To investigate seasonal variations in mare oviductal structure.
- To assess the correlation between season, oviductal parameters, and fertility.
Main Methods:
- Examination of 56 mare oviducts throughout the year.
- Assessment of oviductal anatomy, permeability, cellularity, and pathologies.
- Correlation analysis between seasonal data and oviductal parameters.
Main Results:
- No significant correlation found between season and oviductal permeability or pathologies.
- Most oviducts (88.13%) remained permeable year-round.
- Adhesions increased during anoestrus/spring; oviductal thickening occurred during the reproductive season.
- Oviductal cellularity showed a weak correlation (0.236) with ovarian activity.
Conclusions:
- Seasonal influences on mare oviductal permeability and pathologies are not definitively established.
- Oviductal cellularity is linked to ovarian activity, suggesting a connection to reproductive cycles.
- Further research is needed to fully elucidate oviductal function and its impact on equine fertility.
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