Double cervices in a Gypsy Vanner mare

Joanna  Kania; Katie Wilson; Terje Raudsepp; Caitlin Castaneda; Matthew Jevit; Maria Horteloup; Nadia Saklou; Catherine Jula; Rebecca Funk

doi:10.58292/ct.v15.9395

Joanna Kania Department of Large Animal Clinical Sciences, Virginia College of Veterinary Medicine, Blacksburg, VA, USA
Katie Wilson Department of Large Animal Clinical Sciences, Virginia College of Veterinary Medicine, Blacksburg, VA, USA
Terje Raudsepp Department of Veterinary Integrative Biosciences, Texas A&M University, School of Veterinary Medicine and Biosciences, College Station, TX, USA
Caitlin Castaneda Department of Veterinary Integrative Biosciences, Texas A&M University, School of Veterinary Medicine and Biosciences, College Station, TX, USA
Matthew Jevit Department of Veterinary Integrative Biosciences, Texas A&M University, School of Veterinary Medicine and Biosciences, College Station, TX, USA
Maria Horteloup NUTREP, LLC, Blacksburg, VA, USA
Nadia Saklou Department of Large Animal Clinical Sciences, Virginia College of Veterinary Medicine, Blacksburg, VA, USA
Catherine Jula Department of Large Animal Clinical Sciences, Virginia College of Veterinary Medicine, Blacksburg, VA, USA
Rebecca Funk Department of Large Animal Clinical Sciences, Virginia College of Veterinary Medicine, Blacksburg, VA, USA

DOI: https://doi.org/10.58292/ct.v15.9395

Keywords: Mare, reproductive anomaly, double cervices, fluorescence in situ hybridization, karyotyping

Abstract

A 7-year, purebred Gypsy Vanner, maiden mare was presented with abnormal cervical tissue that was detected during prebreeding examination. External vulvar examination, transrectal and ultrasonographic examination of uterus, and internal vaginal vault and cervical examination (via speculum and endoscopy) were conducted. Karyotype analysis included sex chromosome study with dual-color fluorescence in situ hybridization and polymerase chain reaction for SRY gene. Mare had normal 64,XX karyotype with no evidence of mosaicism. Two distinct, patent, cervical ora separated by a frenulum, leading to a single uterine body, were observed. It was recommended to avoid breeding because of dystocia risk. To the authors’ knowledge, this is the first reported case of this nature in a mare.

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