Mysteries of Equine Herpesvirus-1 Shedding

While it’s widely hypothesized that horses shed equine herpesvirus-1 (EHV-1) during times of stress and illness, researchers on a new study say that critically ill horses with acute gastrointestinal disease (colic or colitis) in a veterinary hospital

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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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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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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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MRLS: Caterpillar Population Up Sharply from 2007

Experts with the University of Kentucky (UK) report that Eastern tent caterpillars are now wandering in the area, and population levels are among the highest they’ve seen since the 2001, when mare reproductive loss syndrome (MRLS) hit Central

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Diagnostics for the Chronically Infertile Mare

The diagnosis and treatment of chronically infertile mares is a complex process. Practitioners should utilize the available diagnostics, including cultures and cytology, along with endoscopy, to root out the myriad causes of this problem and increase

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Umbilical Issues

When should a colt be vaccinated for tetanus, and does a leaking umbilical cord ever seal off without surgery?

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