Breeding and Reproduction

Horse breeding from planning through foal care

MRLS: Sharing Knowledge

You might think, “Well, I’m not a breeder, and I’m not in Florida, so why should I care about mare reproductive loss syndrome (MRLS)?” Because it’s a great example of how an illness can pop up anywhere and take the residents by surprise. But,

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First Commercially Cloned Mares Born

On March 30, scientists announced the birth of the first commercially cloned mare created from the cells of champion cutting horse Royal Blue Boon. The filly, Royal Blue Boon Too, was carried to term by a recipient mare and born on Feb. 19 at

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Herpesvirus Situation Ends in Maryland

Equine herpesvirus-1 (EHV-1) outbreaks in Maryland drew to a close on March 8, after the Maryland Department of Agriculture lifted hold orders on the detention barn at Pimlico Race Course in Baltimore and an isolation barn at the Bowie Training

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Feeding Weanlings

Feeding young horses is a serious business. If we underfeed, we risk problems stemming from malnutrition. If we overfeed, there is the risk of developmental orthopedic disease that can affect bones and joints. Somewhere in between the two

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Breed the Best to the Best

Genomics is a buzz word, even among scientists. The term genomics includes the entire complement of chromosomes, genes, and DNA sequences that make up humans and animals. Technological advances during the last 15 years have led to the entire

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Commentary on Equine Herpesvirus

The recent outbreaks of paralytic equine herpesvirus type-1 (EHV-1) infection at racetracks and training centers in Kentucky, Maryland, and Pennsylvania have illustrated the benefits of combining the old with the new. The old is the regular,

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Worldwide Disease Outbreaks

The International Collating Centre, Newmarket, England, and other sources reported the following disease outbreaks during the fourth quarter 2005.


Cases of abortion caused by equine herpesvirus-1 (EHV-1) were reported from New South

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MRLS Effects Minimal in Central Florida

The impact of the deadly mare reproductive loss syndrome (MRLS) has been minimal on central Florida horse farms this year, but experts say steps should be taken to limit future problems in the area’s vast equine industry.


That was the

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Second Commercial Clone of a Mare is Thriving

ViaGen and Encore Genetics announced last week the arrival of a second commercially cloned mare. The filly, a genetic copy of famed cutting horse Tap O Lena, was born at Royal Vista Southwest Farms in Purcell, Okla., on March 9.


The

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HSUS Makes Public Statement on Commercial Equine Cloning

On March 30, the Humane Society of the United States (HSUS) reacted to the announcement of two successful commercial cloning ventures and additional cloned foals that are expected to be born this spring. “The Humane Society of the United States

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Third Florida MRLS Case Confirmed

An Arabian mare in Marion County aborted a 310-day gestation (the foal was born dead) on March 13 that was confirmed as having mare reproductive loss syndrome (MRLS), according to Dana Zimmel, DVM, Dipl. ACVIM, Dipl. ABVP, of the University of

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Neurologic Case Shows Difficulty of Rule-Outs

A 24-year-old pleasure mare in Brunswick, Ga., has been diagnosed with concurrent infections of equine protozoal myeloencephalitis (EPM) and equine herpesvirus type-1 (EHV-1). Both can cause neurologic disease.

This case highlights the

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