Breeding and Reproduction

Horse breeding from planning through foal care

House Leader Opposes Proposal to Euthanize Wild Horses

A House leader has come out against a federal proposal to euthanize wild horses and asked a federal agency to delay a decision on the animals’ fate.

Rep. Nick Rahall, D-W.Va., chairman of the House Natural Resources Committee, urged the U.S.

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AQHA Donates $50,000 to Genetic Research Fund

The American Quarter Horse Foundation recently donated $50,000 to Morris Animal Foundation (MAF) to advance equine health through MAF’s Equine Consortium for Genetic Research (ECGR) project. The consortium includes 18 equine research institutes

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Mammary Gland Tumors in Mares

Mammary neoplasia (tumors) in the mare is exceedingly rare. To date, published cases consist of reports of six single cases and one report each for two, three, and four mares. Of published cases, all tumors were malignant except one report of a

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A Better Way?

Breeders willing to risk disease or injury for the traits they desire are at the heart of the problems we face today.

We’ve had bad news following bad news lately with the loss of some of the top horses in equestrian

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Multiple Pregnancies: Double the Trouble

The causes and management of equine multiple pregnancies.

Multiple pregnancies are an increasing problem in breeding management. They are usually multizygotic (originating from several ova, i.e., the result of multiple

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Castration Technique Could Reduce Complications

A new sterilization technique that leaves a stallion’s testicles in place but nonfunctioning might provide a safe, simple, and reliable alternative to traditional castration methods, according to Iranian researchers.

In the

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Maryland Officials Announce Availability of EHV-1 Test

As part of the Maryland Department of Agriculture’s (MDA) ongoing work to expedite the identification and control of disease, the College Park Animal Health Diagnostic Laboratory is now able to perform polymerase chain reaction (PCR) testing for

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CEM Rule Amended for Entertainment Horses

The USDA has amended its import rules to allow noncompetitive entertainment horses to be temporarily brought into the U.S. from countries affected with contagious equine metritis (CEM), a venereal disease of horses. The final rule, titled

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Zoo Performs First Reverse Vasectomy on Horse

Scientists at the Smithsonian Institution’s National Zoo have revealed they reversed a vasectomy on an endangered horse to allow it to reproduce naturally–the first-known operation of its kind on an endangered species.

Veterinarians said

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War Emblem Breeding Mares after Therapy

Champion and Kentucky Derby winner War Emblem is responding well to therapy for a breeding behavior dysfunction, according to experts at the University of Pennsylvania.

“He has had fertile sperm, but for several years has remained selective

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Risk Factors for Atypical Myopathy

Aggressive research efforts by Belgian veterinarians have culminated in the identification of numerous indicators or factors–including horse management and pasture characteristics–associated with atypical myopathy, a rapidly developing and fatal di

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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

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Mare Reproductive Loss Syndrome Update

An abortigenic disease known as mare reproductive loss syndrome (MRLS ) significantly impacted the horse industry in the Ohio Valley in late April and early May, 2001 and 2002. In 2001, approximately 25% of all pregnant mares aborted within several

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Genetic Concentration: Too Much of a Good Thing?

“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

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