Recent News for Assisted Reproduction

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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

Article

DHA Positively Affects Semen Quality

January 12, 2011

Various supplements are commonly given to breeding stallions in hopes of improving semen quality, but conflicting reports exist on their effectiveness. Researchers have found, however, that the supplement ingredient DHA, an omega-3 fatty acid found ... Read More

Article

EVA Confirmed in Great Britain

December 10, 2010

A breeding stallion in West Sussex, England, has tested positive for equine viral arteritis (EVA), according to a report filed by the British equestrian magazine Horse & Hound. The confirmation of the EVA was announced Dec. 8.... Read More

Article

Cooled Shipped Semen Quality Impacted by Collection Centers

December 02, 2010

When it comes to the quality of cooled shipped semen for artificial insemination (AI), all semen collection centers are not equal. They're far from it, in fact, according to a new study by Austrian researchers. The huge variation in the quality ... Read More

Article

Building a Horse Breeding Shed

December 01, 2010

Before you open a horse breeding operation, carefully consider the facilities and equipment required.... Read More

Article

Horse Reproduction Trends And Tools

December 01, 2010

Whether reproduction occurs through natural breeding or artificial insemination, techniques and tools exist to help mare and stallion owners achieve their final goal: a complication-free conception, a problem-free pregnancy, and a healthy foal.... Read More

Article

10 Steps for Successful Artificial Insemination for Horses

December 01, 2010

Artificial insemination (AI) is today's breeding standard for many types of horses. To find out how to make our readers' artificial insemination programs more successful, The Horse went to two recognized experts in equine artificial insemination... Read More

Article

Safe (Equine) Teasing

December 01, 2010

Teasing is essential to detect when a broodmare is in estrus, but it's no easy feat due to the size and power of the animals involved. Safety should be top priority--to avoid injury to horses and people.... Read More

Article

Endometritis in Horses Explained

November 01, 2010

Often, the only clinical sign of endometritis is not what you do see but what you don't see: a pregnancy. Endometritis is a major cause of female infertility, affecting up to 15% of broodmares. But because it frequently lacks clear clinical signs... Read More

Article

Health of Cloned Foals Examined in New Study

July 30, 2010

Compared to other species, cloning horses is still in its infancy. Cloning is becoming increasingly popular, yet the health of these artificially-produced foals has not been assessed in detail. "There is very little information ... Read More

Article

More Charges Filed Against NY Farm Operator

July 13, 2010

The New York woman facing 10 animal cruelty counts for allegedly maltreating horses and other animals at her East Aurora farm is now facing multiple new charges. In March, officials from the SPCA Serving Erie county removed 73 horses... Read More

Article

Oocytes From Live Mare Produce Healthy Cloned Foal

June 16, 2010

A Lipizzaner foal born on May 5 is the first cloned horse produced by using oocytes (immature egg cells) harvested from a live mare. Previously, oocytes recovered from live mare donors were used to clone mules, but horses were cloned using oocy... Read More

Article

Clones Benefit From Experienced Veterinarians at Birth

June 04, 2010

The best way to give cloned foals a leg up is to make sure that an experienced veterinary team is present when the mare gives birth, according to a recent study. Katrin Hinrichs, DVM, PhD, Dipl. ACT, and her colleagues recently revie... Read More

Article

First Cloned Polo Pony is Born

April 27, 2010

The cloned foal of 10-goaler Mariano Aguerre's famed gelding, Califa, was born April 22, making him the first cloned polo pony in the world. The bay colt is an intact stallion genetically identical to Califa.

Aguerre has not sett... Read More

Article

Icelandic Volcano Disrupts Semen Shipments

April 15, 2010

The eruption of Iceland's Eyjafjallajokull volcano has closed airports and canceled flights in Europe, leading to the suspension of equine frozen semen shipments at the height of the breeding season.

Jamie Anderson of Equine Repr... Read More

Article

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

Article

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

Article

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

Article

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

Article

Semen Centrifugation Speeds Examined in Study

January 17, 2010

Theriogenologists typically recommend low centrifugation speeds for separating equine semen from seminal plasma in ejaculate, as it was unknown whether higher speeds would damage the cells. However, higher forces did not damage sperm in a new s... Read More

Article

AI With Cooled and Frozen Semen AAEP Table Topic

December 23, 2009

Timing of mare insemination with cooled and frozen semen was one of the hot topics at a session of veterinarians at the 2009 American Association of Equine Practitioners (AAEP) Convention in Las Vegas, Nev. The topics discussed in the AI With C... Read More

Article

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