Causing 30 percent of perinatal loses, placental infection poses a critical concern for mares from conception to parturition.1 In her presentation at last November's West Coast Equine Reproductive Symposium in Los Olivos, Calif., Margo Macpherson,
DVM, MS, DACT, of the Department of Clinical Sciences at the University of Florida Center for Veterinary Medicine, noted that
the University of Kentucky reported a significant spike in nocardioform placentitis cases affecting the 2011 foal crop.
Macpherson has spent more than 10 years researching placentitis in mares. The following discussion, based in part on her November
presentation, outlines the potential causes and treatments for this condition.