Embryo Transfer

A fertilized equine oocyte with two, decondensed pronuclei (DNA marked in blue and the membrane of the pronucleus in red).

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Researchers Mature Equine Oocytes in Laboratory

June 22, 2014

Researchers took a step toward improving assisted reproduction by successfully maturing oocytes in a lab.... Read More

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Four Foals Produced using Genotyped, Cryopreserved Embryos

June 18, 2014

For the first time in Europe four foals were produced via the transfer of genotyped and cryopreserved embryos.... Read More

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Surrogate Mares' Impact on Embryo Transfer Foals Evaluated

June 18, 2014

Researchers found size and metabolic marker differences in half-siblings gestated in mares of different sizes.... Read More

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Foal Birth to be Broadcast Live on Penn Vet's Website

February 23, 2014

Penn Vet will broadcast live the birth of a foal conceived via intracytoplasmic sperm injection.... Read More

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Technique for Sexing Equine Embryos Evaluated

July 06, 2013

One embryo biopsy technique yields accurate results for sex determination without serious threat to survival.... Read More

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UC Davis Seeks Recipient Mare Donations

June 05, 2013

UC Davis is seeking donations of young, healthy mares for its teaching herd to serve as embryo recipients.... Read More

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Recipient Mare Traits Passing On to Foals

May 07, 2013

Is there any proof or research available about the receiving mare's effect on the foal?... Read More

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Cloning and Embryo Transfer Legal Issues

May 23, 2012

The legality of cloning and embryo transfer in horses were discussed at a recent equine law convention.... Read More

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Identifying Genetic Disorders in Equine Embryos

April 09, 2012

According to Hinrichs, the team has achieved success rates greater than 97% in identifying genetic disorders.... Read More

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Assisted Equine Reproduction Horse Course Archived

March 14, 2012

Foss explained a number of scientifically advanced assisted reproduction techniques and relayed how they work.... Read More

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Embryo Recovery Procedures and Collection Success: A Review (AAEP 2010)

March 05, 2011

Since the first live foal produced by embryo transfer was born in 1974, the procedure has become one of the most popular assisted reproduction options for breeders with mares who are valuable or for mares that are to remain in competition. According ... Read More

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Assisted Reproduction in Horses: Practical Usage (AAEP 2010)

February 06, 2011

Technology is an amazing thing--especially technology that allows veterinarians to produce live foals from horses with very poor fertility and even from those that have died. A number of assisted reproductive technologies for horses have been ... Read More

Embryos of the cloned mules from the University of Idaho

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A Chip Off the Old Block: Equine Cloning

February 01, 2011

In this article we'll explore how horses are cloned, why this process is becoming increasingly popular, how closely cloned offspring resemble the original animals, and potential perils and pitfalls.... Read More

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Equine Embryo Transfer Table Topic (AAEP 2010)

January 17, 2011

Equine embryo transfer was a hot topic, discussing different aspects such as donor mare management, embryo recovery techniques, synchronization of recipient and donor mares, and quality and management of recipient mares. ... Read More

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Hormones and Mare Conception Rates

February 22, 2010

Treatment with equine follicle-stimulating hormone (eFSH) does not increase healthy mares' conception rates, researchers recently reported.

The hormone eFSH is used to stimulate donor mares' ovaries to increase the number of ... Read More

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Embryo Transfer Pioneer Dr. John Hurtgen Dies

February 17, 2010

John P. Hurtgen, DVM, PhD, Dipl. ACT, the father of modern embryo transfer, died early this morning while helping a mare to foal at his Nandi Farm in Pennsylvania.

Hurtgen, 62, is reported to have collapsed while assisting the foalin... Read More

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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

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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

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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

Article

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

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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

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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

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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

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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

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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