Johne's Disease (Paratuberculosis) in a Goat.

Johne's disease (paratuberculosis) was diagnosed as the cause of chronic weight loss and intermittent diarrhea in a five year old Saanen doe. Confirmatory necropsy findings included granulomatous enteritis, lymphadenitis, lymphangitis and the demonstration of abundant acid fast organisms within macrophages in impression smears of intestinal mucosa. Some of the difficulties encountered in diagnosing and controlling Johne's disease are discussed with emphasis given to the disease in small ruminants.