Genetics

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Nature vs. Nurture and Horse Health (AAEP 2010)

February 17, 2011

The phrase "nature vs. nurture" is usually used to refer to the debate over which has a greater impact on a person's personality and preferences--genetics or environment/rearing. But for this article, we'll use it in the context of fetal programming,... 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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Animal Genetics Testing Lab Celebrates 25th Anniversary

January 28, 2011

This year the University of Kentucky's Animal Genetics Testing & Research Laboratory (AGTRL) will celebrate 25 years of offering a variety of genetic testing services to horse owners and breed registries. Established in 1986 and formerly known as the... Read More

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Rachel Alexandra's First Breeding: One for the History Books

January 02, 2011

Amidst all the hoopla surrounding Zenyatta's retirement and the speculation regarding the identity of her first mate, last year's Horse of the Year has been all but forgotten. Yet Rachel Alexandra also occupies a unique place in racing history, and ... Read More

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XY Sex Reversal in Horses: The Genes Behind the Switch

December 27, 2010

Veterinary researchers have taken a leap forward in explaining XY sex reversal, the most common equine sex chromosome abnormality. A team of scientists from the University of Kentucky's Gluck Equine Research Center and the College of Veterinary... Read More

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Genetic Mutation Caused Nonhereditary White Coat Color Pattern

December 26, 2010

Researchers recently discovered a new genetic mutation in a Thoroughbred foal that was born with large portions of nonpigmented skin. Whether another horse with the the same rare mutation will be born is unknown, but the discovery has fueled ... Read More

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Tying-Up in Thoroughbreds: Narrowing the Genetic Search

December 24, 2010

Researchers suspect tying-up in horses is a heritable condition; however, they have yet to determine the gene--or genes--responsible. But a team of Japanese researchers recently moved the investigation forward with a groundbreaking study of affected ... Read More

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Navicular Disease: Researchers Identify Potential Genes Involved

December 22, 2010

A team of German researchers might have pinpointed the genes responsible in part for the development of navicular disease as the result of a study of Hanoverian Warmbloods. ... Read More

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What's In Your Horse's DNA?

December 01, 2010

Geneticists have created tools and tests that enhance horse breeders' ability to select for healthy foals.... Read More

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Specific Gene Thought to Determine Athletic Ability

November 27, 2010

Two separate research teams have identified the myostatin gene as a crucial indicator of athletic ability in a Thoroughbred's genetic makeup and are continuing to study the potential of this marker for race distance selection.... Read More

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Genetic Research is a New Tool in Breeding

October 13, 2010

The quest to breed a better horse has led Thoroughbred breeders to try many unorthodox theories and systems, all with mixed results. To date, the success (or lack thereof) of most of these tools has been anecdotal, with no way to qua... Read More

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A Gene for Speed?

October 09, 2010

What makes a winner? Just about every breeder and owner has asked and debated this question. Certainly genetics must play a role, or why else breed a winning stallion or mare? But is there a gene for speed? This was the question asked of the ... Read More

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Lavender Foal Syndrome Test Offered by Cornell University

September 14, 2010

his year has been an exciting one for Arabian horse owners. Not only has the genetic mutation for lavender foal syndrome (LFS) been determined, a test that can identify affected foals and horses that carry the gene for the disease has been developed.... Read More

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In Defense of Grade Horses

August 01, 2010

Many people are under the impression that grade horses (those whose parentage is unknown, unidentifiable, or of significantly mixed breeding) are largely to blame for the horse overpopulation issue. ... Read More

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One in a Million: Part 2

July 28, 2010

Genetic testing has shown Dunbars Gold, a 1996 brindle Quarter Horse stallion, to be an extremely rare chimera, an individual with two DNA types. Of the more than 4.7 million American Quarter Horses registered with AQHA, only 15 are brindles... Read More

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One in a Million, Part 1

July 21, 2010

Genetic testing has shown Dunbars Gold, a 1996 brindle Quarter Horse stallion, to be an extremely rare chimera, an individual with two DNA types. Of the more than 4.7 million American Quarter Horses registered with AQHA, only 15 are brindles... Read More

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Mutation Causing Lavender Foal Syndrome Identified

May 19, 2010

A mutation in the gene called myosin Va (MYO5A) is responsible for Lavender Foal Syndrome (LFS).... Read More

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Breakthrough in Genetic Testing of Embryos

April 18, 2010

Early this year, frozen embryos that had undergone genetic testing were thawed and successfully transferred into the uteri of surrogate mares at Minitube International Center for Biotechnology in Mount Horeb, Wis.

The benefit of gen... Read More

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Allergy, Parasite Link Investigated

April 01, 2010

Horses with allergic diseases, like recurrent airway obstruction, might have fewer parasites.... Read More

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Family of Hermaphroditic Horses Identified

March 30, 2010

Koko the horse appeared to be a typical mare, but when she began acting overly aggressive and trying to mount her female counterparts, her owner became suspicious.

After a barrage of tests at the University of Guelph's Ontario Ve... Read More

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Horses Needed for Equine Metabolic Syndrome Research Project

March 22, 2010

Equine metabolic syndrome is a devastating disease characterized by the three main features of obesity, insulin resistance, and laminitis. Certain breeds or individual horses are predisposed to EMS, and are often referred to as "easy keepers." These... Read More

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Rare White Thoroughbred to Debut at Turfway

March 19, 2010

When Paul Megson attended the 2007 Keeneland November breeding stock sale with his young daughter, Valerie, he had his eye on a particular weanling that stood out from the hundreds of other catalog entries because of one obvious reason: his pur... Read More

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Advances in Equine Medicine Discussed at AAEP

February 27, 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... Read More

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Gluck Faculty Attend Plant and Animal Genome Conference

February 27, 2010

Researchers and graduate students from the University of Kentucky's (UK) Gluck Equine Research Center attended the annual Plant and Animal Genome Conference (PAG), held Jan. 9 through 13 in San Diego, Calif., to share equine genomic researc... Read More