Actinomycosis in animals
（重定向自Lumpy jaw）
![bovine actinomycosis, 3-years-old bull, 2-month evolution](/Images/godic/202501/25/Actinomicôze4740.jpg")
![bony swelling of the right maxillae](/Images/godic/202501/25/Actinomicôze_houzaedje_droete_mashale4740.jpg")
![thick matter (top) and old fistulous granulomas](/Images/godic/202501/25/Actinomicôze_sûnaedjes4740.jpg")
Actinomycosis in animals is caused by Actinomyces bovis (whereas human infections are usually due to A. israelii).
Actinomycosis is a quite common condition in cattle, where it is referred to as lumpy jaw or senfed (moroccan arabic), but it can also occur in horses, swine, dogs and rarely in sheep. In all these species, actinomycosis results in cold abscess, with granulomatous formations on the fistulised place.