Breeding and Reproduction

Horse breeding from planning through foal care

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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Endophyte-Infected Fescue

Tall fescue (Festuca arundinacea) is a nutritious cool-season perennial grass that grows on more than 35 million acres in the United States. Introduced from Europe more than 100 years ago, it didn’t become popular until the mid-1940s afte

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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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Final Kentucky Track Quarantine Ends

Equine herpesvirus quarantines at two Kentucky Thoroughbred facilities have been released, ending the recent outbreak of the neurologic disease. Robert Stout, DVM, Kentucky state veterinarian, lifted the quarantine at Turfway Park in Florence on

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New Product Reduces Clinical Signs of Herpes

Pfizer Animal Health on Feb. 8 announced the release of Zylexis in the United States, which according to the company’s research prepares the horse’s immune system to function more efficiently against equine herpesvirus-1 and -4 (EHV-1 and EHV-4)

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Kentucky Rescinds Maryland EHV Restrictions

On March 31, one week before Keeneland’s spring race meet is set to begin, State Veterinarian Robert Stout, DVM, lifted restrictions for all Maryland horses entering Kentucky racetracks based on information provided by the Maryland Department of

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Sexual Misbehavior Vaccine?

I am looking into ways to settle down a colt that is showing full-blown sexual interest already at a 1 1/2 years of age. He’s just too much for us to handle, but we are not ready to geld him. If you try to correct him when he’s all excited, he

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Florida MRLS Update 3-31-06

A second foal has been confirmed as having died from mare reproductive loss syndrome (MRLS) in Florida, according to Dana Zimmel, DVM, Dipl. ACVIM, Dipl. ABVP, of the University of Florida’s College of Veterinary Medicine. The first case was a

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First Commercially Cloned Mare Born

Scientists and veterinarians today (March 30) 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 an

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Premature Foals (Book Excerpt)

Foals can be born prematurely for a variety of reasons. The most common reasons for a premature delivery are infection of the placenta (placentitis) or long-standing placental insufficiency.

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