Braxy is an inflammatory disease in the abomasal lining of sheep caused by the bacterium Clostridium septicum

Clostridium septicum

Clostridium septicum is a gram positive, spore forming, obligate anaerobic bacterium.Clostridium septicum can cause gas gangrene, but unlike other Clostridium species like Clostridium perfringens, no trauma is necessary at the site of the infection. It is thought that the infection is established...

(aka Bacillus septicus).

Braxy is often brought on by a change from succulent food to dry (or icy) food. It is usually seen in young sheep, in particular those not protected with a Clostridial vaccine.

The mutton affected with this disease can also be referred to as braxy.