Embryo Transfer


Equine Reproduction Advances Discussed at AAEP

February 16, 2010

What was the hottest news in equine veterinary medicine in 2009? During the popular Kester News Hour session at the annual American Association of Equine Practitioners (AAEP) Convention, three top veterinarians (who focus on equine reproduction, inte... Read More


First Biopsied Vitrified Embryo Foal Born

February 15, 2010

The world's first foal from a biopsied and vitrified embryo transferred into a surrogate mare was born Jan. 27, 2010, at Minitube International Center for Biotechnology in Mount Horeb, Wisc. The procedure used to create the filly provides ho... Read More


Breedings to Deceased Stallions Offered Via Injection Technique

November 17, 2009

A reproductive technique called intracytoplasmic sperm injection (ICSI), in which a sperm cell is injected directly into an egg, has resulted in foals from many mares that were no longer able to produce. However, it might be equally as... Read More


Sexed Equine Semen Available Commercially in 2010

November 12, 2009

The ability to have stallion semen sorted for sex-selected foals is being offered on a commercial basis through a new alliance between Sexing Technologies and Equine Reproduction Innovations. The use of sex-selected semen in conjunction with... Read More


Equine Reproduction Advances: Filly Born a Year after Dam's Death

August 14, 2009

Mira, a foal born Aug. 4, runs happily in Binghamton, N.Y., even though her mother died almost a year ago from a ruptured intestine. Her birth was made possible through a team at Cornell that might be among the first to successfully extract... Read More


Embryo Transfer in Chronically Infertile Mares, AAEP 2008

March 24, 2009

Embryo transfer is a management procedure for producing foals by mares that either are in training or have reproduction problems. In some cases the goal is to allow young performing mares to reproduce while continuing their careers. In other cases th... Read More


DNA Testing for Twins (AAEP 2008)

March 03, 2009

Tissues from both the recipient and donor mare, as well as from the two stillborn foals, were submitted for microsatellite analysis. The analysis verified that the foals had identical genotypes and resulted from the transferred embryo.... Read More


Unique Attribute of Equine Uterus Impacts Embryo Transfer

January 26, 2009

The equine uterine environment plays an integral role in the early developmental stages of pregnancy, even prior to implantation of the embryo, according to British researchers who recently examined the role of the uterus in ... Read More


Embryo Transfer an Involved but Viable Breeding Option

January 20, 2009

Horse owners with a mare that can't carry a foal to term need not give up on the idea of getting a foal from her. One potential solution is embryo transfer (ET), a technique that involves taking a fertilized egg from the desired mare and... Read More


Equine Endometrial Infections Following Embryo Transfer Limit Pregnancy Rates

October 25, 2008

According to a group of European reproduction specialists from the Centre for Artificial Insemination and Embryo Transfer, University of Veterinary Sciences in Austria, subclinical infections of the uterine lining can occur following... Read More


Summit Speakers Discuss Equine Reproductive Technology

June 05, 2008

Four speakers discussed advances in assisted reproduction to wrap up the session on the emerging science of horse breeding at the Kentucky International Equine Summit, held in Lexington, Ky., April 28-29. The speakers agreed that the key is not... Read More


Genetic Concentration: Too Much of a Good Thing?

May 24, 2008

"For years we've taught the industry about reproduction, but we haven't taught about breeding," said Gary Carpenter, executive director of the American Quarter Horse Foundation during a roundtable at the International Equine Summit, held in... Read More


Palm Beach Equine Medical Purchases Embryo Transfer Facility

April 25, 2008

Palm Beach Equine Medical Centers, headquartered in Wellington, Fla., recently purchased the New Bridge Embryo Centre in Aiken, S.C. The facility is now called the Palm Beach Equine Embryo Center (PBEEC). The goal is to continue to provide top-notc... Read More


Reproductive Hormones Directly Influence Embryo Development

January 26, 2008

A group of Dutch researchers reported evidence that the equine conceptus (i.e., the embryo and associated membranes) might be directly responsive to the reproductive hormones progesterone and estrogen,... Read More


Mississippi Vet School Completes its First Frozen Embryo Transfer

December 07, 2007

Her future registered name might be different, but around the horse unit at Mississippi State University (MSU), everyone calls her Popsicle.

Born in September, Popsicle is the result of MSU's first successful frozen embryo transfer in... Read More


Freezing Embryos

November 01, 2007

With breed registries admitting more than one foal per mare per year, the use of frozen embryos is becoming more mainstream.

The freezing of equine embryos is getting increased... Read More


Superovulation and Embryo Transfer

July 11, 2007

It's no secret that embryo transfer is expensive, and that its success rates are lower than those of some other methods of equine reproduction. "Commercially, single embryo recovery attempts have a 50% recovery rate, and there is a 50-65%... Read More


Repro Updates

March 23, 2007

Equine reproduction was covered at the 2006 AAEP Convention including foaling, venereal disease, breeding, etc... Read More


Reproduction Problems

March 01, 2007

Drug compounding, the ethics of treating cryptorchids, and sexually transmitted diseases were the hot topics discussed by equine practitioners at the Reproduction Forum.... Read More


Embryo Transfer: Who's Your Mama?

February 01, 2007

Embryo transfer (ET)--recovering the embryo from a bred donor mare for placement into a recipient mare that will carry and raise the foal--has become a useful reproductive tool for a growing number of breeders. Mares that are competing, or mares... Read More


AAEP Convention 2005: Problems With Multiple Embryo Collection

February 17, 2006

Embryo transfer has been well-established in the horse industry as a method of obtaining multiple offspring from a valuable donor mare. The increased usage of this technique prompted Colorado State University (CSU) researchers to examine the... Read More


AAEP Convention 2005: Increasing Embryo Recovery and Fertility

February 17, 2006

In a study from the University of Saskatchewan, Canadian researchers compared ovulation rates, embryo recovery and quality, and subsequent pregnancy rate using two estrus synchronization methods--prostaglandin (PG) administration and progesteron... Read More


AAEP Convention 2004 Wrap-Up: Reproduction

March 03, 2005

Pregnancies from Euthanized Mare Ovaries

"You think breeding mares on foal heat is tough, try dead mares!" said Elaine Carnevale, DVM, PhD, professor in equine reproduction in the department of biomedical sciences at Colorado State... Read More


Embryo Transfer Discussed

February 15, 2005

Much of the discussion involved sharing professional information, such as specific instruments involved, but they also addressed such matters as preparation of the recipient mare and the most optimum state of embryo maturation for transfer.... Read More


Pregnancies from Dead Mare Ovaries

February 14, 2005

"Death or euthanasia of a valuable mare results in loss of her genetic potential," she said. "However, when a mare dies, her ovaries still contain potentially viable oocytes that can be harvested to produce additional offspring."... Read More