Endometritis continues to plague the breeding industry and is currently touted as the third-most-important medical problem diagnosed in adult horses, Paccamonti said. | Photo: Anne M. Eberhardt/The Horse

A healthy endometrium—the lining of the mare’s uterus—is important for achieving and maintaining a pregnancy. However, it’s a delicate structure, vulnerable to inflammation and capable of harboring bacteria deep in its layers. To boot, this inflammation, known as endometritis, can be challenging to treat effectively, leaving researchers on the hunt for new therapeutic options.

But there’s some good news: Veterinarians have tested a new antibiotic option for horses with endometritis, and the initial results are promising.

“Endometritis continues to plague the equine industry and is currently touted as the third-most-important medical problem diagnosed in adult horses,” said researcher Dale Paccamonti, DVM, Dipl. ACT, theriogenology professor and head of Veterinary Clinical Sciences in Louisiana State University’s (LSU) School of Veterinary