Embryo Transfer Donor Mares

Premium sport mares available for lease

Rosella - Imported Stadt Premium Oldenburg mare by Donnerhall - Rubenstein I

There are some very special sport mares available through Cloverlone this season. Some are available for ET and others are available for lease to carry foals on owner's premises (local to northern Virginia) or with Cloverlone.

 

October Secret - 1999 premium imported Holsteiner mare by Contender - Alcatraz -- Aldato, stamm 579. For complete pedigree and more photos, click here >>

 

Rosella - Imported Stadt Premium Oldenburg mare by Donnerhall - Rubenstein I. Rosella has had many premium foals and comes from a long line of premium mares. ET or may carry a foal with special consideration.

For complete pedigree and more photos, click here >>

 

Daisy - Imported mare by Caretino - Ladykiller -- Roman, stam 569. She's dam of Roman Saluut (v. R-Saluut II) who in 2008 earned 3rd in the 5 year old finals qualifier and 8th in the $20,000 5 year old Easter Regional Final at the Hampton Classic Horse Show. For complete pedigree and more photos, click here >>

 

Gucci - Imported Russian Trakhener mare from very old lines. Retired from dressage at 4th level. ET or may carry a foal with special consideration. For complete pedigree and more photos, click here >>

 

Raine - Premium Holsteiner mare by Lord Capitol - Caracas -- Merano, stamm 730B. Available to carry a foal (2010-2011). For complete pedigree and more photos, click here >>

 

 

 

 

Embryo Transfer Explained:

Embryo transfer (ET) involves inseminating the donor mare with fresh, chilled or frozen semen from a stallion of choice at or very near the time of ovulation to induce or allow the opportunity for conception. Eight days after ovulation, a non-surgical method (i.e., uterine lavage) is used to attempt to recover any/all potentially formed embryo(s) out of the donor mare's uterus. The recipient mare(s) must be in synchrony with the estrous cycle of the donor mare, having ovulated within a 48 hour window with respect to the donor mare. One or more embryo(s) that may have been recovered, and that are of an acceptable quality are then placed into a suitable recipient (surrogate) mare, once again using a non-surgical method similar to an artificial insemination. Success of the transfer can be determined 7 days after the transfer to determine whether the recipient mare(s) retained a viable embryo and established pregnancy. Ultimate success of course is dependent upon the recipient mare(s) carrying the pregnancy to full term, and delivering a live foal(s).

 

Synchrony between the donor and recipient mares can most often be the more difficult or at least time consuming part of this assisted reproductive technology (ART). Working in advance by 7-14 days of the planned breeding of the donor mare, one or more recipients must be identified that could potentially meet the synchrony requirements of the donor's estrous cycle. Planning and advance communications between all parties involved are just as important to a successful outcome as are the mares themselves, the stallion's fertility, and the expertise of the professional(s) performing the procedures.

 

As a professional and a board certified specialist in equine reproduction, I much prefer to manage this process from start to finish as the only professional involved to minimize errors in timing, judgment, and communication.

Please call me if you have further questions you wish to discuss.

 

Here are a few links for further reading and review:

 

1. Embryo recovery procedures and success review article from proceedings of the American Equine Practitioners meeting in December, 2010

 

2. Keys to successful equine embryo transfer article by Ed Kane, Jan., 2010 in DVM Newsmagazine