Equine Embryo Transfer

At Charles Ranch Equine, we use the process of equine embryo transfer. It is a safe procedure which involves the collection and transfer of a fertilized egg, or embryo, from a donor mare to a synchronized recipient mare. The donor mare can be bred via artificial insemination using fresh, cooled or frozen semen, or live covered. The breeding of the mare is identical to breeding mares destined to carry their own foal. The recipient then carries to term and delivers.

To ensure the best chance of success, we offer full board for your mare. We also have a large herd of recipient mares. This allows us to make sure the recipient mares are completely synchronized with the donor, resulting in a higher chance of a positive result.

Why Embryo Transfer?

  • Mare With Complications

    Your mare is older, has restricted reproductive potential or has difficulty carrying full term.

  • Keep Competing

    You can have a foal out of your prized mare with a recipient, meaning you can keep competing for the season.

  • Multiple Foals

    You can breed multiple foals from one mare. A mare can usually produce 3 embryo’s a breeding season.


We have a herd of healthy and fertile recipient mares. The benefits of having a recipient herd available is that through close monitoring, we are able to match recipients to the donor mare. This also means you do not need to provide mares. Once the recipient mare is confirmed pregnant, she will then go home with you to foal out. At the completion of weaning the foal, the recipient mare will then be returned to Charles Ranch Equine.

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