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Related Experiment Videos

[Twin pregnancy in mares].

W van Leeuwen

    Tijdschrift Voor Diergeneeskunde
    |September 15, 1984
    PubMed
    Summary

    Twin pregnancies in mares typically arise from asynchronous double ovulation, not synchronous. Early diagnosed twin pregnancies should not be interrupted prematurely, as one embryo often dies naturally by day 36.

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    Area of Science:

    • Reproductive biology
    • Veterinary medicine
    • Equine science

    Context:

    • Twin pregnancies in mares are a significant concern in equine reproduction.
    • Previous literature on mare twin pregnancies is evaluated.
    • Understanding ovulation patterns is crucial for reproductive success.

    Purpose:

    • To analyze recent findings on twin pregnancies in mares.
    • To determine the origin of twin pregnancies (synchronous vs. asynchronous ovulation).
    • To provide guidance on managing early diagnosed twin pregnancies.

    Summary:

    • Twin pregnancies in mares predominantly result from asynchronous double ovulation (ovulation more than 2 days apart).
    • In over 50% of cases diagnosed around day 20, one embryo is lost by day 36.
    • Early diagnosis of twin pregnancies, especially via ultrasound by day 14, should not lead to immediate termination.

    Impact:

    • Informs veterinary practitioners on the likely origins of twin pregnancies in mares.
    • Suggests a conservative approach to managing early twin pregnancies, allowing for natural selection.
    • Highlights the importance of monitoring and reassessment rather than immediate intervention.

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