Three Indiana Stallions Positive for CEM

Three Paint stallions that stood at DeGraff Stables/Liberty Farm Equine Reproduction Center LLC in Midway, Ky., during the 2008 breeding season have now tested positive for contagious equine metritis (CEM), according to a statement released by the Indiana State Board of Animal Health Dec. 31. The stallions are  located in northern Indiana.

The three Indiana stallions bring the total of stallions so far confirmed positive for CEM to seven. The other four reside in Kentucky, where they have already completed treatment for Taylorella equigenitalis, the causative organism for CEM, according to Rusty Ford, equine programs manager in the office of Kentucky State Veterinarian Robert Stout, DVM. The other stallions remaining in Kentucky will begin test breedings to CEM-negative mares Tuesday.

In all, 22 stallions stood at DeGraff Stables/Liberty Farm during the 2008 breeding season, during which between 740 and 760 mares were inseminated. Mares bred with semen from infected stallions must be tracked and quarantined, and cultured a minimum of three times.

Ford said the positive stallions in Indiana should not be cause for alarm, as they are part of the population already identified as being at-risk. "There's still no evidence that the organism has been transmitted outside of the identified population," Ford stated.

Read more about the CEM investigation.  

About the Author

Erin Ryder

Erin Ryder is a former news editor of The Horse: Your Guide To Equine Health Care.

Stay on top of the most recent Horse Health news with FREE weekly newsletters from Learn More