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Related Experiment Videos

Embryo transfers from mares in athletic competition.

G L Woods, J V Steiner

    The Cornell Veterinarian
    |April 1, 1986
    PubMed
    Summary

    This study demonstrates that mares in athletic training can successfully produce viable embryos for equine embryo transfer. These findings confirm that performance mares can continue competing while contributing to reproductive programs.

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    Expression of the uterine Mx protein in cyclic and pregnant cows, gilts, and mares.

    Journal of animal science·2003

    Area of Science:

    • Equine reproduction
    • Animal science
    • Sports medicine

    Background:

    • Mare reproductive efficiency is crucial for breeding programs.
    • Maintaining athletic performance in mares can pose challenges for reproductive management.

    Purpose of the Study:

    • To assess the feasibility of obtaining multiple pregnancies from mares actively engaged in athletic training and competition.
    • To evaluate the viability of embryos recovered from performance mares for embryo transfer.

    Main Methods:

    • Four mares in athletic competition served as embryo donors.
    • Embryos were recovered via surgical flushing and transferred to recipient mares.
    • Pregnancy rates in recipient mares were monitored at one week post-transfer.

    Main Results:

    • Twenty-six embryos were recovered from 38 collection attempts.
    • Pregnancy was achieved in 90% of recipients receiving one transfer and 75% of recipients receiving two transfers.
    • Twelve recipient mares maintained pregnancies to day 150 from four competing donor mares.

    Conclusions:

    • Elite performance mares can remain in athletic competition while simultaneously serving as sources of viable embryos.
    • Embryo transfer technology can be successfully applied to mares involved in sports, enhancing their reproductive value.
    • This approach supports the dual use of high-value mares in both athletic endeavors and genetic preservation/propagation.

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