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Embryo transfer in sheep under practice conditions.

T Boundy, M J Clarkson, A C Winter

    The Veterinary Record
    |October 12, 1985
    PubMed
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    Embryo transfer in Texel sheep yielded 14 lambs from 21 transferred embryos. This study suggests embryo transfer is not routine but for specific sheep breeding circumstances.

    Area of Science:

    • Veterinary Medicine
    • Animal Reproduction
    • Sheep Breeding

    Background:

    • Embryo transfer (ET) is a valuable tool in animal reproduction.
    • Its application in sheep under veterinary practice conditions requires evaluation.

    Purpose of the Study:

    • To describe the techniques of anesthesia, surgery, and embryo transfer in Texel sheep.
    • To assess the efficacy and practicality of ET under farm and veterinary practice settings.

    Main Methods:

    • Superovulation protocols were applied to Texel donor ewes.
    • Embryo recovery and transfer procedures were performed at a veterinary practice.
    • Recipient synchronization and surgical procedures were detailed.

    Main Results:

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    • Superovulation response was variable, with 41 corpora lutea and 27 embryos recovered from 10 ewes.
    • Twenty-one embryos were transferred, resulting in 14 lambs born.
    • Donors also had a high lambing rate, with 9 out of 10 producing lambs.

    Conclusions:

    • Embryo transfer in Texel sheep under practice conditions yielded a moderate success rate.
    • The economic, value, and welfare aspects suggest ET should be reserved for special circumstances, not routine use.