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Skip Navigation LinksAll Horse Topics > Breeding/Reproduction > Artificial Insemination


Articles ( * = TheHorse.com members only )Date Posted
Breedings to Deceased Stallions Offered Via Injection Technique
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 important in reviving valuable genetics from stallions that have been dead for decades. The ability to freeze ... Read full story
 11/17/2009
Sexed Equine Semen Available Commercially in 2010
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 intracytoplasmic sperm injection will be offered to horse breeders for the 2010 breeding season. Why used ... Read full story
 11/12/2009
Equine Reproduction Course Offered for Ontario Horse Owners
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 of Huron (REACH). “Now is the time owners should be thinking about getting their mares ready for next ... Read full story
 11/1/2009
Equine Semen Extenders: Effect on Bacterial Growth and Sperm Viability
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 researchers compared antibiotic properties of common equine semen extenders with four different strains of ... Read full story
 10/20/2009
Stallion Hygiene Key for Improving Frozen Semen  *
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 the number of sperm able to withstand freezing. "In our lab we are trying to understand why some stallions ... Read full story
 8/22/2009
CEM Study: Antibiotic-Treated Semen Can Reduce Transmission Risk  *
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 agent of CEM, while mares may develop signs of an endometritis/cervicitis/vaginitis following exposure to an infection ... Read full story
 7/19/2009
AAEP 2008: Processing Dilute Semen for Artificial Insemination   *
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 a relatively low concentration of sperm--requires modified procedures to get enough viable sperm in each ... Read full story
 4/20/2009
AAEP 2008: Embryo Transfer in Chronically Infertile Mares
Management of Embryo Donor Mares with Chronic Infertility was the title of an in-depth presentation by John Hurtgen, DVM, Dipl. ACT, of Nandi Veterinary Associates in New Freedom, Pa., at the 2008 American Association of Equine Practitioners convention, held Dec. 6-10 in San Diego, Calif. He said embryo transfer is a management procedure for producing ... Read full story
 3/24/2009
AAEP 2008: New Tool for Counting Sperm   *
Equine practitioners now have a new, accurate tool for measuring stallion fertility--the NucleoCounter SP-100 fluorescence-based instrument. While it is more expensive than some instruments currently used for counting sperm, it is accurate and easy to use, according to a study presented at the 2008 American Association of Equine Practitioners convention, ... Read full story
 3/9/2009
AAEP 2008: Breeding The Problem Mare With AI   *
Achieving pregnancy via artificial insemination (AI) of a problem mare can be a challenging endeavor, said Juan Samper, DVM, MSc, PhD, Dipl. ACT, of Langley, British Columbia, in his presentation at the 2008 American Association of Equine Practitioners convention, held Dec. 6-10 in San Diego, Calif. However, he added, if the proper diagnostic and treatment ... Read full story
 3/8/2009
AAEP 2008: Frozen Semen Use in Barren Mares   *
More and more breeders are employing the use of frozen semen and success rates are increasing, reported Sandro Barbacini, DVM, of Select Breeders Services in Italy during his presentation at the 2008 American Association of Equine Practitioners convention, held Dec. 6-10 in San Diego, Calif. Included among the reasons for increased usage, Barbacini ... Read full story
 3/5/2009
Questions to Ask Before Breeding a Mare  *
Thinking of breeding your mare this spring? The recent outbreak of contagious equine metritis (CEM, which is caused by bacterium Taylorella equigenitalis) in the United States and the previous outbreak of equine viral arteritis (EVA) have underscored the importance of doing your homework when lining up a stallion. While not all diseases are avoidable ... Read full story
 2/2/2009
Storm Cat to Serve as a QH Stallion  *
Storm Cat, a leading sire who was pensioned last year after experiencing fertility problems at the Young family's Overbrook Farm near Lexington, Ky., might return to the sire ranks as a Quarter Horse stallion. The Quarter Horse breeding industry permits artificial insemination and allows for a Thoroughbred/Quarter Horse mix. The idea was ignited last ... Read full story
 1/17/2009
Contagious Equine Metritis Investigation Progresses in Wisconsin  *
Veterinary authorities continue to connect the dots in the investigation into contagious equine metritis (CEM), a contagious venereal disease of horses. Earlier this week, officials announced that an imported Friesian stallion in Wisconsin tested positive for the causative bacterium, Taylorella equigenitalis, perhaps bringing them closer to understanding ... Read full story
 1/16/2009
Prevent CEM, Other Infectious Diseases Through Strict Hygiene  *
Strict hygiene guidelines should be followed whenever handling breeding mares or stallions to prevent reproductive infectious diseases, including contagious equine metritis (CEM). CEM is spread between horses primarily by breeding, either by natural service or artificial insemination (AI). Grooms, handlers, and breeding technicians or veterinary ... Read full story
 1/7/2009
Breeding Equipment  *
Want your mare in Texas bred to a stallion residing in Germany? It’s easy with today's equipment and technology. Today's equine planned parenthood means that humans intervene, sometimes using veterinary equipment that helps them get the job done effectively. In this article we'll take a look at the modern tools you might use for breeding, whether ... Read full story
 10/1/2008
Summit Speakers Discuss Equine Reproductive Technology  *
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 finding new technologies for breeding, but honing in on those we currently employ with a greater understanding ... Read full story
 6/5/2008
Artificial Insemination: It's Not How Much You Have, It's Where You Put It  *
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 ejaculate per mare, maximizing stallion fertility rates, and reducing the likelihood of endometritis, according ... Read full story
 5/3/2008
Learning with Florida Vets  *
More than 170 equine practitioners from Florida gathered in the Bahamas to hear the latest on reproduction and sports medicine Ahhh, the Caribbean life ... toes in the sand, margarita in hand, and ocean water warm as a bath and clear as an aquamarine. Throw in a bunch of veterinarians and researchers discussing equine reproduction and lameness and ... Read full story
 5/1/2008
The Business of Breeding  *
Walk through the breeding processes of live cover and artificial insemination to learn about the necessary equipment. Breeding in the horse world breaks down into a few categories: field breeding, where the horses just do what comes naturally, live cover in a breeding shed, and artificial insemination (AI). The tools of the trade range from very ... Read full story
 11/1/2007
Ice Formation Not to Blame for Loss of Viability in Preserved Equine Sperm  *
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 of water into cells, causing them to swell and burst. In a recent study co-authored by John Morris, PhD, from Asymptote ... Read full story
 9/27/2007
Well-Equipped Breeding  *
Tips on what you might need to equip your stallion breeding station, from microscopes to AVs The lexicon of the breeding shed has changed dramatically in the last decade or so. Words that horse owners were unfamiliar with in the past are part of the vocabulary today. They freely discuss the merits of various artificial vaginas for collecting semen, ... Read full story
 9/1/2007
Lubricants Can Harm Sperm: New Product Preserves Motility  *
Results of a recent research study indicated most nonspermicidal veterinary lubricants decrease sperm motility during cooled semen storage. Juan Samper, DVM, PhD, Dipl. ACT, of JCS Veterinary Reproductive Services near Vancouver, British Columbia, evaluated the effect of different lubricants commonly used for semen collection on sperm motility over ... Read full story
 3/31/2007
Back to Nature: Simplifying Management Might Reduce Breeding-Induced Endometritis  *
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 Sciences, at the University of Florida's College of Veterinary Medicine. "We used to think that bacteria ... Read full story
 2/1/2007
How Far We've Come  *
I was flattered when I was asked to discuss how far we've come in equine reproduction. I found it interesting to go back and review the many changes that have occurred. Stallions The use of artificial insemination has increased over the past several decades in all breeds except the Thoroughbred. Commercial skim milk extenders containing antibiotics ... Read full story
 12/1/2006
Breeding Expertise  *
The annual conference of the Society for Theriogenology (SFT) was held Aug. 22-26 in St. Paul, Minn. Scientists and clinicians specializing in reproduction shared new research and updated views on many topics during the conference. Following are some of those topics. Retained Endometrial Cups John Steiner, DVM, Dipl. ACT, of Hagyard Equine Medical ... Read full story
 12/1/2006
Tennessee Bill Would Allow Artificial Insemination Without Veterinary Supervision  *
A Tennessee bill, which was to reach Gov. Phil Bredesen's desk in late April, would consider artificial insemination (AI) a farm management practice, meaning the state would no longer require veterinary supervision in order to artificially inseminate a mare. According to the Shelbyville Times-Gazette (www.t-g.com), the bill comes on the heels of the ... Read full story
 6/1/2006
Tennessee Bill Would Allow AI Without Veterinarian Supervision   *
A Tennessee bill, which should land on Gov. Phil Bredesen's desk later this month, would consider artificial insemination a farm management practice, meaning that the state would no longer require veterinary supervision in order to artificially inseminate a mare as it does now. According to the Shelbyville Times-Gazette (www.t-g.com), the bill comes ... Read full story
 4/14/2006
AAEP Convention 2005: Optimizing Pregnancy Rates for Frozen-Thawed Semen  *
A major disadvantage associated with frozen-thawed semen is the fertility of the semen, which can be considerably less than fresh semen. This can be problematic when deciding how many progressively motile sperm (PMS) are needed per breeding to produce optimal pregnancy rates in mares. Elizabeth Metcalf, MS, DVM, Dipl. ACT, of Honahlee PC equine clinic ... Read full story
 2/17/2006
Breeding Globally--AI Advances
Breeding without boundaries; it sounds like science fiction. Yet today we can breed two animals from different time zones, even different continents, through advances in artificial insemination. In this article, we will delve into the present and future of this advancing technology, discussing how it can be used for the convenience of owners and the ... Read full story
 12/1/2005
Breeding Specialists  *
The equine breeding industry has evolved dramatically with the introduction of artificial insemination programs and advanced assisted reproductive techniques. While live cover breeding pro-grams are still a mainstay for specific breeds, many breed associations now accept foals conceived through the use of cooled and frozen semen, embryo transfer, and ... Read full story
 12/1/2005
Supplementing for Semen Quality   *
Cooling and freezing equine semen damages cell membranes, which results in loss of motility and general viability known as "cold shock." Most domestic species have high concentrations of polyunsaturated fatty acids (PUFAs) in the semen, but the amounts of these PUFAs, particularly DHA, an omega-3 fatty acid, and DPA, an omega-6 fatty acid, vary by ... Read full story
 9/1/2005
The ART of Breeding  *
Successful breeding of horses is not always as easy as presenting a receptive mare to a fertile stallion. There are many things that can go awry with the reproductive process. Broodmares that were once fertile and produced many excellent foals might one day face the realities of repetitive foaling injuries, chronic uterine infections, or simply old ... Read full story
 2/1/2005
AAEP 2004: Stretching Semen in the Aged Stallion  *
As breeding stallions age, their reproductive abilities can wane, leaving their breeding managers with a problem--too many mares to breed, and not enough sperm. J. Scott Weems, DVM, of Weems & Stephens Equine Hospital in Aubrey, Texas, has successfully incorporated low-dose hysteroscopic insemination (LDHI)--direct placement of sperm at the site ... Read full story
 1/26/2005
Advances in Artificial Insemination  *
Artificial insemination (AI) is becoming an increasingly popular method for breeding horses, and with that comes advances in the timing methods used to inseminate mares. "Breeders have embraced the use of transported cooled semen for all the benefits associated with shipping semen to mares as opposed to shipping valuable mares and foals to stallions ... Read full story
 12/15/2004
AAEP Wrap-Up: Reproduction  *
Feeding for Stallion Fertility Research has shown that boars can be fed a specific diet to increase fertility, and the same might be true of stallions. Steven Brinsko, DVM, PhD, Dipl. ACT, from Texas A&M University, discussed the potential of feeding a nutraceutical to stallions to enhance their fertility. He said the nutraceutical, ... Read full story
 3/1/2004
AAEP 2003: Artificial Insemination Made Simple  *
Ed Squires, PhD, an honorary Diplomate in the American College of Theriogenology (reproduction), of Colorado State University, presented a lecture at the 2003 American Association of Equine Practitioners’ convention on a simplified strategy for insemination of mares with frozen semen. Squires said the perception in the industry is that mares must ... Read full story
 2/3/2004
AAEP 2003: Saline-Coated Particles Enhance Semen Quality  *
The technique of using saline-coated silica particles in solution to filter and therefore enhance semen quality in humans has been around for years. Now, it is being tried to improve semen of stallions. Information about this procedure was presented at the AAEP Convention by Margo MacPherson, DVM, MS, of the University of Florida, from a study done ... Read full story
 1/31/2004
AAEP 2003: Feeding to Improve Fertility of Stallions  *
Research has shown that boars can be fed a specific diet to increase fertility, and the same might be true of stallions. Steven Brinsko, DVM, PhD, Dipl. ACT, from Texas A&M University, discussed the potential of feeding a nutraceutical to stallions to enhance their fertility during his presentation at the American Association of Equine Practitioners ... Read full story
 1/31/2004
The ABCs of Artificial Insemination   *
There are many reasons why you might decide to breed your mare by artificial insemination (AI). The most common is to allow you to use a stallion that is a distance away--even abroad--and so increase the scope of stallions available and reduce the risks and expense of travel for your mare. However, AI might also be chosen for reasons such as: To minimize ... Read full story
 12/1/2003
First Sexed Offspring of the World's First Sexed Mare and Stallion Born  *
Researchers led by XY Inc., a global biotech company in Fort Collins, Colo., were recently successful in their quest to produce the first sex-selected offspring of the world’s first sex-selected mare and first sex-selected stallion. “First Lady” was born April 20. The filly was produced via artificial insemination (AI) using an extremely low dose of ... Read full story
 7/8/2003
AI, Stallion Book Size Among Topics at Conference  *
Artificial insemination (AI) and stallion book size were among the more controversial topics discussed as university professors from across the United States, Great Britain, Australia, and Israel gathered in Louisville, Ky., June 25-28 for the third International Equine Industry Program Academic Conference. About 35 participants presented papers on ... Read full story
 7/1/2003
Evaluating Semen Quality  *
Stallion owners must determine if their stallions have what it takes physically to make a good breeding prospect, including good semen quality, before the start of the breeding season. In his presentation at the sixth annual Equine School at the Alltech Symposium, Peter Sheerin, DVM, Dipl. ACT, a theriogenologist at Rood and Riddle Equine Hospital ... Read full story
 6/3/2003
Shatner's Ex-Wife Sues Over Horse Semen   *
According to an Associated Press story, "Star Trek" star William Shatner's ex-wife has sued him for breach of contract over breeding privileges of three American saddlebred stallions. “Marcy Lafferty Shatner claims in her civil lawsuit that her ex-husband broke an agreement in their 1995 divorce settlement that allowed her one breeding privilege per ... Read full story
 5/15/2003
Uterine Lavage Before Insemination Not Harmful to Mare Fertility  *
Uterine lavage can be performed immediately prior to artificial insemination in mares without adversely affecting fertility, according to a recent study completed at the University of Idaho (UI) in Moscow, Idaho. The uterine lavage process is used to clear the uterus of inflammatory fluids that could decrease the viability of semen in mares. Researchers ... Read full story
 4/23/2003
AI Made Easy   *
Ed Squires, PhD, an honorary Diplomate in the American College of Theriogenology (reproduction), of Colorado State University, presented a lecture at the 2003 American Association of Equine Practitioners’ convention on a simplified strategy for insemination of mares with frozen semen. Squires said the perception in the industry is that mares must ... Read full story
 2/4/2003
Horseman's Day at the 2002 AAEP Convention  *
Horseman’s Day, held for the third time as part of the annual AAEP convention, was another rousing success. There weren’t as many people in attendance as there were in San Diego last year, but they were just as enthusiastic. AAEP officials said that 266 were in attendance at the Orlando session compared to 400-plus last year and about 200 when the ... Read full story
 12/17/2002
Deep Horn Insemination Technique  *
In his presentation "Deep Horn Insemination" at the Hagyard-Davidson-McGee Bluegrass Equine Reproduction Symposium Oct. 25, John Steiner, DVM, Diplomate ACT, discussed two ways to use minimal numbers of sperm deposited at the tip of the uterine horn to achieve satisfactory pregnancy rates. One method involves the use of a videoendoscope for guidance, ... Read full story
 11/8/2002
Foal Sex Selection   *
Sex selection of foals prior to conception is highly desirable for horse breeders. Currently, sperm can be sorted by their X and Y chromosomes, improving odds of sex selection through artificial insemination. Flow cytometry measures DNA in cells and can sort sperm, but it's time-consuming and damages sperm, leading to great losses during the procedure. ... Read full story
 11/1/2002
Purina Veterinary Conference  *
Only 20 miles from downtown St. Louis, Mo., is a 1,200-acre research farm owned by the nutrition company Purina Mills. On Oct. 3-5, 140-plus veterinarians and another 50 Purina Mills representatives gathered to tour that research facility and hear speakers lecture on various topics during the Purina Mills Veterinary Nutritional Conference. Three of ... Read full story
 10/16/2002
New CSU Semen Facility Meets International Standards  *
The new stallion barn at Colorado State University’s Equine Reproduction Laboratory, specifically designed to meet the requirements for exporting semen internationally, is now complete and prepared to handle client requests around the world. The new facility is comprised of 1,200 square feet for semen collection, a barn to house 10 stallions for the ... Read full story
 9/11/2002
AQHA Settles Embryo Transfer Lawsuit  *
The American Quarter Horse Association has eliminated all restrictions regarding the registration of foals produced through embryo transfer as part of an out-of-court settlement with a coalition of breeders. For a couple of years, the AQHA has been fighting a lawsuit that claimed a rule limiting the registration of embryo transfer foals to one per ... Read full story
 6/12/2002
Modifying Semen Extender  *
Stallion semen is particularly susceptible to freeze-thaw damage, so multi-step procedures are being developed and evaluated to slowly extend and cool the semen prior to freezing it. In addition, the common semen extender INRA82, developed at INRA-Haras Nationaux in Nouzilly, France, is being modified with various additives in an attempt to improve ... Read full story
 6/1/2002
Flushing Solution?
I worked at a breeding farm when I was in high school, and after we inseminated the mare we flushed the tube with some type of solution that either was skim milk or reminded me of skim milk. What was that solution and was it necessary? Suzi The solution you are referring to is semen extender. It is used to increase the volume of fluid inseminated, ... Read full story
 5/1/2002
Breeding Dummy Design  *
We have a Quarter Horse stallion that we will be starting in a shipped semen program this year. All of us--the stallion, our veterinarian, and our farm personnel--are new at collecting semen. We are in the planning stages for our breeding room and trying to make decisions on a dummy mount. Our vet said that you recently gave a talk on dummy mounts ... Read full story
 4/1/2002
Ground vs. Breeding Mount Semen Collection  *
We have show pony breeding stallions, and as of last year are doing almost all shipped semen. This year we are seriously thinking about expanding our business to offer semen collection and shipping services for outside stallions, which will involve improving our facilities. We're thinking about whether or not we need and can afford a dummy mount. We ... Read full story
 4/1/2002
AAEP Convention 2001: Reproduction Research   *
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 involved a discussion of techniques for the use of frozen semen. Sperm Dysfunction Dickson D. Varner, DVM, ... Read full story
 2/1/2002
Courts May Settle Artificial Insemination Debate   *
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 forever is forever," warned D. Barry Stone, legal counsel for the American Quarter Horse Association, which has been sued over a rule ... Read full story
 1/24/2002
Assessing Sperm Quality  *
James Graham, PhD, of Colorado State University, spoke in the Reproduction session at the Nov. 2001 convention of the American Association of Equine Practitioners. In this presentation he said many attributes other than motility are involved in a sperm's good health and fertilizing capability. "If we look only at motility," he said, "we will over-estimate ... Read full story
 1/3/2002
A Breed Apart: Cooled and Frozen Semen  *
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 York, for example, can be bred to a stallion which is standing in California and never leave her home farm ... Read full story
 10/15/2001
Restraint Techniques for Breeding  *
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 conformation, temperament, and talent, we long ago became involved in the process of equine matchmaking--and in doing so, we put ... Read full story
 10/8/2001
Freezing Semen  *
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 DNA of a stallion to be available to mare owners around the globe, but it enables a stallion to stand at stud while he continues his performance career. It also means reduced transport costs and less stress for ... Read full story
 10/8/2001
WEVA: On the Move  *
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, the United Kingdom, and the United States, heard topics addressed in Italian and English. With so many ... Read full story
 10/8/2001
Semen Analysis  *
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. The result is an open mare, something that can cost the mare owner time, money, and patience. There are ... Read full story
 10/5/2001
Maximizing Pregnancy Rates With Shipped Semen  *
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 pay rapt attention to all means of enhancing the fertility of stallion semen being shipped nationwide. There is, however, tremendous variability in the ... Read full story
 10/4/2001
Dual Hemisphere Breeding  *
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 stallions from other breeds also have joined the jet set, but in less dramatic fashion. Because artificial insemination is permitted ... Read full story
 10/3/2001
Breeding With Chilled and Frozen Semen  *
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. In the late 18th Century, an Italian scientist took the idea up again. He performed a series of studies ... Read full story
 9/26/2001
Semen Gains Entry   *
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 delighted, and distraught. What is relief for some, easing the logistical headache of cross-border semen shipping, ... Read full story
 10/6/2000
Artificial Insemination  *
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 artificial insemination (AI) first made its appearance on the equine scene is open to debate. There is the somewhat ... Read full story
 2/1/2000
Breeding the Older Mare  *
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, but in many situations, good management, accurate diagnostics, and appropriate medical or surgical therapies can ... Read full story
 12/1/1999
Sexed Semen and Artificial Insemination   *
Four new foals are leading the field in the race to develop insemination techniquest that could forever change the face of the multibillion-dollar international horse-breeding industry. XY, Inc., a Colorado biotech company, has announced the birth of the world's first foals to be born from mares impregnated via artificial insemination combined with ... Read full story
 9/1/1999
EVA--Equine Viral Arteritis  *
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!" "We'll overnight that disease for you to get tomorrow. Is there anything else?" "No, that order of disease will take care of me ... Read full story
 2/1/1999
Does Frozen Semen Really Work?  *
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 yearly basis, thousands of mares are inseminated with frozen semen around the world. Although the technology for freezing ... Read full story
 2/1/1998
APHA Passes New Rule On Transported Semen  *
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 limit of 25 mares per year. The new rule, which will go into effect in 1998, allows for unlimited breedings using transported ... Read full story
 11/1/1997




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