Studies on ulcerative dermal necrosis of salmonids V. The histopathology of the condition in brown trout (Salmo trutta L.)

Abstract

The clinical signs and histopathological findings of an ‘ulcerative dermal necrosis’ in brown trout were compared with those observed in salmon and sea trout suffering from UDN. There were close similarities in the lesions shown by both types of fish, but more brown trout recovered and the healing process was temperature dependent.