Cooled & Frozen Semen
Article
'Cheap 'n' Easy' Method for Evaluating Stallion Sperm Described (AAEP 2012)
Researchers studied the use of Dip Quick stain for examining sperm morphology with positive results.
Photo by Anne M. Eberhardt
Article
Building a Horse Breeding Shed
Before you open a horse breeding operation, carefully consider the facilities and equipment required.
Photo by Anne M. Eberhardt
Article
'Cheap 'n' Easy' Method for Evaluating Stallion Sperm Described (AAEP 2012)
January 27, 2013
Researchers studied the use of Dip Quick stain for examining sperm morphology with positive results.... Read More
Article
Single Layer Centrifugation Benefits in Horse Breeding
April 20, 2012
SLC can help breeders address problems associated with breeding both stallions and mares.... Read More
Article
Stored Semen Processing Method Evaluated
January 13, 2012
A scaled-up single layer centrifugation method improved stored semen quality.... Read More
Article
Artificial Insemination: What's New?
December 01, 2011
Precise timing and specialized tools are the mainstays of successful equine insemination.... Read More
Article
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
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
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
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
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 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
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
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
Article
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
Article
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
Article
Artificial Insemination: It's Not How Much You Have, It's Where You Put It
May 03, 2008
When it comes to artificial insemination in horses, the site of deposition might have a big impact on the procedure's outcome. Placing semen directly into the uterine horn containing the ready follicle could allow breeders to use far less... Read More
Article
Ice Formation Not to Blame for Loss of Viability in Preserved Equine Sperm
September 27, 2007
Loss of spermatozoa viability following cryopreservation, historically attributed to the formation of intracellular ice, is now believed to be a result of an osmotic imbalance during thawing. Osmotic imbalances result in the movement... Read More
Article
Reducing Breeding-Induced Endometritis by Simplifying Management?
February 01, 2007
Modern breeding management and assisted reproduction might actually exacerbate the issue of mating-induced endometritis, according to Mats Troedsson, DVM, PhD, Dipl. ACT, a professor of equine theriogenology in the Department of Large Animal Clinical... Read More
Article
Shipping and Disease: EVA
September 01, 2006
One of the major problems with EVA is how easily it can be transferred from one horse to another. Of course there is the respiratory route, where nasal secretions spread the virus from horse to horse through a barn or training stable.... Read More
Article
Frozen vs. Cooled Semen
January 01, 2006
We are getting ready to breed our mare to a stallion whose semen is only shipped frozen. Does using frozen-thawed semen instead of cooled semen reduce the chances of our mare getting pregnant? <HR... Read More
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Farm Call: Your Questions Answered
Frozen vs. Cooled Semen
Q. We are getting ready to breed our mare to a stallion whose semen is only shipped frozen. Does using frozen-thawed semen instead of cooled semen reduce the chances of our mare getting pregnant? Generally, any time you manipulate semen, the per-cycle pregnancy rate decreases. The rate should be highest for fresh semen, then shipped semen, followed
International Breeding
Q. I brought two Walking Horse mares to France. I would like to breed to a U.S. stallion and want to know what the success rate might be with shipped frozen or cooled semen. Will I run into importation red tape? Joey Expect LOTS OF RED TAPE. It would be best to deal with frozen semen because of the risk
Finding a Suitable Cooled Semen Facility
Q. Q: I'm considering using shipped cooled semen for my mare. I want to find a reliable farm/facility to take the shipment and breed her. How do I find a qualified facility? What questions do I need to ask about quality? Is there a site or a book to inform me about this? A: Equine practitioners offering ambulatory services can often provide this service on the farm. However...
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