Changes

Affected muscle is black, dry and infiltrated with small bubbles. The lesions can be present in any muscle including the tongue or diaphragm. Often in sheep, lesions are deep and quite small. Suspected cases can be confirmed using demonstration of ''C. chauvoei'' in affected muscle using the fluorescent antibody test on smears produced from the primary lesion.

Affected muscle is black, dry and infiltrated with small bubbles. The lesions can be present in any muscle including the tongue or diaphragm. Often in sheep, lesions are deep and quite small. Suspected cases can be confirmed using demonstration of ''C. chauvoei'' in affected muscle using the fluorescent antibody test on smears produced from the primary lesion.

In the early stages the periphery of the muscle appears dark red and is distended by serous or serosanguinous exudate. <fint color ='red'  WHAT Is wet on the cut surface with a rancid smell.</font color> The center of the lesion is full of gas bubbles, porous, dry and reddish black.  

In the early stages the periphery of the muscle appears dark red and is distended by serous or serosanguinous exudate. <font color ='red'> WHAT Is wet on the cut surface with a rancid smell.</font color> The center of the lesion is full of gas bubbles, porous, dry and reddish black.  

Additionally gram positive bacteria may be found in clumps.

Additionally gram positive bacteria may be found in clumps.