Placentitis is the sneaky foe of many a breeder or broodmare manager. The condition can arrive with no calling card, or such mild symptoms that they’re easily missed. By the time a pregnant mare’s caretakers are aware of it, it’s often too late to save the foal.
It’s been the leading cause of pregnancy loss, especially late pregnancy loss, in horses for years.
Dr. Margo Macpherson, professor emeritus at the University of Florida’s College of Veterinary Medicine, has been one of many researchers trying to figure out how to stop it in its tracks.