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Mare Services > Recipient Mares

QEC Recipient Mares (Lease Agreement of QEC Recipient Mares)

Recipient mares are an essential part of the embryo transfer process. Without a quality and well set-up recipient mare, the embryo transfer will fail. At QEC our veterinarians and staff work diligently to maintain an excellent recipient mare herd and attribute a high percentage of successful transfers to properly monitoring and preparing these mares. The QEC Recipient mare herd is evaluated three times per week: mares are handled, teased, and in season mares scanned to keep precise records of cycles and ovulations. Consistent scanning provides a history of the recipients’ cycles allowing a more exact match to the donor mare’s cycle. Throughout the breeding season QEC retains a herd of 30-40+ selectively chosen recipient mares, usually allowing veterinarians several possible recipients for each embryo. The best recipient is chosen upon strict evaluation of ovulation, quality of CL, uterine and tone, among other reproductive factors. ). During the peak 2011-2012 breeding season, Dr. Simson had a successful transfer rate of 80-90% into QEC recipient mares.

Recipient mares at QEC receive 14 and 30 day pregnancy scans, and are scanned the day of departure (usually around 45 days). Some of QEC recipient mares will be caslicked after transfer, or have the upper section of the vulva stitched together to reduce internal infection and chance of abortion. Upon discharge of the recipient mare you will receive an information package outlining details of the embryo, date of transfer, due date and if the recipient has been caslicked. These recipient mares are leased and returned to QEC after the foal has been weaned.

Client Owned Recipient Mares

If a client wishes to provide their own recipient mare, QEC suggests having at least three possible recipient mares per donor mare. Clients are welcome to bring their potential recipient mares to QEC for reproductive evaluations. If suitable mares are found, their cycles must be matched correctly to the donor mare’s cycle. Then, on the day of the transfer, the recipient mare must evaluate well internally (see criteria above) to receive the embryo. While this option can be quite successful and less expensive, the transfer rate into client recipients is not as high as QEC recipient mares. The exact reason varies by case, but contributing factors include substandard evaluation and match to donor mare’s cycle, unknown history of the mare, and management.

What Makes A Suitable Recipient?

Most of the recipient mares at QEC are young Standardbreds. Our vets prefer these mares due to their size, hardy nature, good fertility, and ease of handling. Many are proven mothers. A suitable recipient mare should have a clean reproductive history and be under 10 years of age. Recipients also need to be on a good plane of nutrition and in good condition to cycle regularly. A well-mannered mare will be to the client’s advantage as she will give birth to and raise the foal for its first few months of life.