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First record of abortion of single co-twin in an Arabian mare and continuity of the other to full term and birth
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  • Mohamed Derbala,
  • Mary Sargious ,
  • Jonathan Pycock,
  • Naglaa Hagag
Mohamed Derbala

Corresponding Author:mohamed_equine@yahoo.com

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Mary Sargious
Animal Health Research Institute
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Jonathan Pycock
Equine Reproductive Services Ltd
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Naglaa Hagag
Animal Health Research Institute
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Twin pregnancies in Arabian horses is a major cause of abortion. In all cases when the abortion occurs, it occurs for both fetuses. Unusually in the case described here, which we believe has not previously been documented in Arabian horses, one fetus aborted in undersized and representing an age of 4 months. The other fetus completed the gestation and reached full term followed by birth. The authors postulated that one fetus underwent a stage of diapause like marsupials in a blastocyst stage then re-grew again, followed by abortion. The parentage analysis confirmed that both feti are derived from the same dam and sire stallion.
26 May 2023Submitted to Equine Veterinary Education
26 May 2023Assigned to Editor
26 May 2023Submission Checks Completed
26 May 2023Reviewer(s) Assigned