Recent News for Assisted Reproduction
Article
Scientists Uncover New Way to Assess Ovulation
February 13, 2002
Veterinarians generally assess whether a mare has ovulated and is ready to breed by rectal palpation. However, new research suggests that a mare’s blood plasma sample can tell the veterinarian just as accurately that ovulation has occurred. The... Read More
Article
Rare Donkey Born Through Embryo Transfer in Australia
February 06, 2002
Monash University reproductive research is helping save the world's most endangered donkey breed. In a world first, a rare and prehistoric-looking Poitou donkey foal has been born to a surrogate Standardbred horse after embryo... Read More
Article
AAEP Convention 2001: Reproduction Research
February 01, 2002
Presentations on reproduction have long been a hallmark of AAEP gatherings, and this year was no exception. The full-day reproduction session was split into two parts--the first was of a general nature, while the afternoon in-depth session... Read More
Article
Courts May Settle Artificial Insemination Debate
January 24, 2002
Published in the Jan. 26 issue of The Blood-Horse Thoroughbred breeders who are happy with the industry's staunch opposition to artificial insemination and embryo transfer should not get too comfortable. "Don't think... Read More
Article
Assessing Sperm Quality
January 03, 2002
Laboratory assays have been developed which evaluate multiple sperm parameters on large numbers of sperm in a semen sample. These assays may prove useful in evaluating semen prior to insemination or at the beginning of the breeding season.... Read More
Article
A Breed Apart: Cooled and Frozen Semen
October 15, 2001
The shipping of cooled and frozen semen has opened the door to a wide variety of breeding opportunities for horse owners, providing, of course, that their breed organization permits artificial insemination (AI) with shipped semen. A mare in New... Read More
Article
Restraint Techniques for Breeding
October 08, 2001
When a mare and a stallion meet, love might be in the air...but there's the potential for danger, too. Particularly when humans get in the middle of it all. In our efforts to orchestrate the best possible combinations of... Read More
Article
Freezing Semen
October 08, 2001
The technology that allows us to freeze a stallion's semen for future use has opened up a world of opportunities. Not only does it allow the stallion's DNA to be available to mare owners around the globe, but it enables a stallion to stand at stud wh... Read More
Article
WEVA: On the Move
October 08, 2001
They met in Italy to exchange information about reproduction, sports medicine, infectious diseases, transportation, and surgery. The more than 300 delegates from 29 different countries, including Germany, Australia, New Zealand, Ireland, Denmark... Read More
Article
Semen Analysis
October 05, 2001
A stallion produces untold billions of sperm during a lifetime, and in a normal ejaculate, he can send four billion of them on a race to fertilize a single egg. Only one sperm can succeed. Unfortunately, there are times when none of them succeed... Read More
Article
Maximizing Pregnancy Rates With Shipped Semen
October 04, 2001
Well, there’s no avoiding it—shipped semen is no longer the ‘wave of the future.’ It has rapidly emerged as an integral part of every general equine practice and breeding facility. Therefore, we must... Read More
Article
Dual Hemisphere Breeding
October 03, 2001
Thoroughbred breeding stallions truly have joined the jet set. These four-legged Romeos are flying from one part of the world to another these days as they perform breeding duties on both sides of the equator. Hundreds of... Read More
Article
Breeding With Chilled and Frozen Semen
September 26, 2001
Artificial Insemination (AI) involves the introduction of sperm into the reproductive tract of the mare without natural mating. AI in the horse was first practiced long ago. Ancient Arabian texts describe how mares were successfully inseminated.... Read More
Article
AQHA Embryo Transfer Case Revisited
September 21, 2001
On Friday, Sept. 14, 2001, officials and attorneys for the American Quarter Horse Association were back in court to receive presiding Judge Patrick A. Pirtle's decision on a motion that was filed by AQHA asking the judge to reconsider... Read More
Article
Consequences
September 18, 2001
Do you want a say-so in what the United States government is doing that concerns horses? I’m talking about the issue of allowing equine semen into this country with even less testing than presently is required. Horse breeders know that semen can... Read More
Article
Embryo Transfer for Horses
September 18, 2001
One plus one plus one equals one. The stallion, dam, and surrogate dam probably never met, but all three contributed to produce a foal. Today's assisted breeding technologies can overcome the constraints of distance, competitive involvement,... Read More
Article
Semen Evaluation
January 01, 2001
Breeding horses today often involves the use of artificial insemination (AI) with fresh, cooled, or frozen semen (except for Thoroughbreds). But whether you are using AI or live cover, the main goal is to get a viable sperm to fertilize a mature... Read More
Article
Semen Gains Entry
October 06, 2000
Effective Oct. 20, the United States Department of Agriculture (USDA) Animal Plant Health Inspection Service (APHIS) eliminated importation requirements for equine semen crossing the border from Canada. That decision has the horse industry... Read More
Article
Artificial Insemination For Horses
February 01, 2000
Artificial insemination of equines has been around a long time and, through the years, has had a profound impact on the horse industry. Most of the impact has been of the positive variety, but there also have been some negatives. Just when... Read More
Article
Breeding the Older Mare
December 01, 1999
By the time a broodmare enters her late teens and early 20s, her reproductive ability begins to decline, and getting and keeping her pregnant become more problematic. The causes of reproductive difficulties in the older mare are numerous,... Read More
Article
Sexed Semen and Artificial Insemination
September 01, 1999
New equine artificial insemination techniques could one day allow breeders to utilize sex-selected semen.... Read More
Article
Canadian Equine Research
April 01, 1999
The University of Guelph, located in Ontario, Canada, is home of the world renowned Ontario Veterinary College (OVC). The university is a research-intensive and student-oriented facility. Its written mission is to serve society and to enhance th... Read More
Article
EVA--Equine Viral Arteritis
February 01, 1999
Imagine the following telephone conversation. "Yes, I'd like to order some disease, please." "Yes, ma'am. We can get some disease right out to you. When do you want your disease delivered?" "The sooner, the better!"... Read More
Article
Does Frozen Semen Really Work?
February 01, 1998
It has been more than 40 years since Canadian investigators reported the birth of the first foal from the insemination of a mare using frozen stallion semen. Since then, the technology of semen freezing has evolved tremendously. On a... Read More
Article
APHA Passes New Rule On Transported Semen
November 01, 1997
American Paint Horse Association (APHA) stallion owners are no longer limited to the number of mares bred with transported cooled semen. At the APHA’s annual convention, held October 2-4, directors passed a rule eliminating the old... Read More
