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A field study on embryo transfer in cattle.

M Drost, G B Anderson, P T Cupps

    Journal of the American Veterinary Medical Association
    |June 15, 1975
    PubMed
    Summary
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    Embryo transfer in cattle using Fleckvieh and Gelbvieh breeds resulted in a successful pregnancy rate. This study demonstrates the viability of surgical embryo transfer for cattle breeding programs.

    Area of Science:

    • Animal Science
    • Reproductive Biology
    • Veterinary Medicine

    Background:

    • Surgical embryo transfer is a key technology in cattle breeding.
    • Optimizing protocols for different breeds is crucial for reproductive efficiency.

    Purpose of the Study:

    • To evaluate the efficacy of surgical embryo transfer in Fleckvieh and Gelbvieh cattle.
    • To determine pregnancy rates following embryo transfer.

    Main Methods:

    • Embryos were collected from Fleckvieh and Gelbvieh heifers.
    • Embryos were transported and surgically transferred into recipient cows.
    • Pregnancy diagnosis was performed at approximately 50 days.

    Main Results:

    • 35 embryos were collected from 8 donors.

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  • 34 embryos were transferred into recipient cows.
  • 19 recipient cows were diagnosed pregnant, yielding a pregnancy rate of approximately 55.9%.

    • Conclusions:

    • Surgical embryo transfer is an effective method for establishing pregnancy in cattle.
    • The study supports the use of this technique for genetic improvement in Fleckvieh and Gelbvieh breeds.