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Gamete intrafallopian transfer

E M Carnevale1

  • 1Department of Animal Science, Food, and Nutrition, College of Agriculture, Southern Illinois University, Carbondale, USA.

The Veterinary Clinics of North America. Equine Practice
|April 1, 1996
PubMed
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Gamete intrafallopian transfer (GIFT) places donor eggs into a surrogate, allowing fertilization and embryo development within the recipient. This technique offers a viable option for achieving pregnancies in subfertile mares previously unresponsive to embryo transfer.

Area of Science:

  • Veterinary Medicine
  • Reproductive Biology
  • Animal Science

Background:

  • Embryo transfer is a common assisted reproductive technology in equine reproduction.
  • Subfertile mares often present challenges for successful pregnancy outcomes using traditional methods.
  • Variability in success rates necessitates exploration of alternative reproductive techniques.

Purpose of the Study:

  • To evaluate the efficacy of Gamete Intrafallopian Transfer (GIFT) as a method for achieving pregnancy in subfertile mares.
  • To explore GIFT as an alternative to embryo transfer when it has been nonproductive.
  • To assess the potential of GIFT for research and commercial applications in equine reproduction.

Main Methods:

  • GIFT procedure involves the surgical placement of a donor mare's oocytes into the oviduct of a recipient surrogate mare.

Related Experiment Videos

  • Fertilization and subsequent embryo development occur in vivo within the recipient mare's reproductive tract.
  • The technique bypasses the need for in vitro fertilization and embryo culture.

    • Main Results:

    • GIFT has demonstrated potential as a viable method for obtaining pregnancies in mares with subfertility issues.
    • Reported pregnancy rates following GIFT have shown variability, with recent studies indicating high success rates.
    • The technique has proven effective in cases where conventional embryo transfer has yielded nonproductive results.

    Conclusions:

    • GIFT presents a promising assisted reproductive technology for equine reproduction, particularly for subfertile mares.
    • Further refinement of GIFT techniques is expected to enhance its reliability and success rates.
    • The application of GIFT holds potential for both scientific research and commercial breeding programs in the equine industry.