Recent News for Assisted Reproduction
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
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
Article
Equine Reproduction Course Offered for Ontario Horse Owners
November 01, 2009
A two-day equine Reproduction course, designed for anyone interested in learning about artificial insemination (AI) techniques for horses, will be offered Nov. 7-8, 2009, in Clinton, Ontario, at the Regional Equine & Agricultural Centre o... Read More
Article
Equine Semen Extenders: Effect on Bacterial Growth and Sperm Viability
October 20, 2009
Preliminary results of a collaborative effort between researchers at Oklahoma State University and Texas A&M University were recently presented at the American Association of Veterinary Laboratory Diagnosticians in San Diego, Calif. These... Read More
Article
Clones of Event Horse Che Mr. Wiseguy Expected in March
October 06, 2009
Two foals that will be born in March 2010 are the first clones of a three-day event horse. A Belgian Warmblood gelding owned by Ronald Zabala-Goetschel of Quito, Ecuador, and Kennett Square, Pa., Che Mr. Wiseguy is a dark bay gelding with three... Read More
Article
Cloning: What We've Learned
October 01, 2009
The first equine clones were born in 2003, and now advertisements for cloning can be found in equine magazines, and the AQHA has considered registering cloned foals. There are more than 40 live cloned horses. What have we learned and what... Read More
Article
Mule Cloning Scientist Dies
August 29, 2009
Gordon Woods, DVM, MS, PhD, Dipl. ACT, who while at the University of Idaho helped create the world's first cloned mules, died Aug. 20 at the age of 57. He was 57 and currently employed at Colorado State University. Woods, one of the... Read More
Article
Stallion Hygiene Key for Improving Frozen Semen
August 22, 2009
The semen of some stallions tolerates freezing well, while the semen of others does not. Researchers are trying to discover the reasons for this in order to develop freezing protocols that decrease the variability of sperm, thereby increasing th... Read More
Article
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
Article
CEM Study: Antibiotic-Treated Semen Can Reduce Transmission Risk
July 19, 2009
Researchers at the Gluck Equine Research Center will publish a study this fall on contagious equine metritis (CEM), a sexually transmitted disease in horses. Stallions are asymptomatic carriers of Taylorella equigenitalis, the causative agen... Read More
Article
Processing Dilute Semen for Artificial Insemination
April 20, 2009
Since artificial insemination is currently practiced in most equine breeds (except Thoroughbreds), processing semen for cooling and transport is a common task in most equine reproductive centers. However, processing a dilute ejaculate--one with... Read More
