Breeding and Reproduction

Horse breeding from planning through foal care

CEM Confirmed in Texas Stallion


Laboratory tests have confirmed that a stallion in Texas is infected with contagious equine metritis (CEM), a highly contagious venereal disease of horses, the Texas Animal Health Commission (TAHC) reported today.

The infected

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CEM Test, Treatment Protocol Videos Available

With more than 350 horses involved in the investigation into contagious equine metritis (CEM), veterinarians in 38 states are being asked to swab and treat horses for a disease this country hasn’t seen in decades, and then only on a limited basis in Kentucky.

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Contagious Equine Metritis: Culture and Diagnosis

One of the most difficult problems in diagnosing contagious equine metritis (CEM) is isolating the organism from heavily contaminated sites in the stallion and mare. CEM is caused by Taylorella equigenitalis, a Gram-negative bacterium,

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Carry That Weight: Lameness in Pregnant Mares

Lameness is not an uncommon condition in pregnant mares. But does pregnancy itself make a horse more prone to lameness?

“Any horse can become lame while pregnant, but pregnancy does not make lameness more likely as a single factor,” said

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Wyoming Warns Horse Owners About CEM

Although the state is not involved with the investigation into contagious equine metritis (CEM), the Wyoming State Veterinarian is advising horse breeders and veterinarians to be aware of the equine reproductive disease. The

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CEM Exposure: 17 Wisconsin Horses Quarantined

Seventeen horses on 11 different farms in Wisconsin have been quarantined and will be tested because they have been exposed to a highly contagious disease that can cause reproductive problems in mares.

However, Wisconsin State Veterinarian

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Prevent CEM, Other Infectious Diseases Through Strict Hygiene

Strict hygiene guidelines should be followed whenever handling breeding mares or stallions to prevent reproductive infectious diseases, including contagious equine metritis (CEM).

CEM is spread between horses primarily by breeding, either b

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CEM Exposure: Virginia Farms Quarantined

Richard L. Wilkes, DVM, state veterinarian with the Virginia Department of Agriculture and Consumer Services (VDACS), Dec. 23, 2008, placed full or partial quarantines on farms in Floyd and Goochland counties. Mares at these farms have had

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