A 10-day-old male calf of F1 of Hereford and Brown Swiss was diagnosed as white scours at 7days of age and died 3days later in spite of treatment.
Main autopsy findings were rumenitis, anemia and dehydration. Histopathologically, noteworthy lesions were invasion of fungi in to muscle through the mucosa and blood vessels of the rumen, intestinal catarrh, changes in glomeruli and degeneration of the epithelia of convoluted tubules and loops of Henle in the kidney, and catarrhal suppurative pneumonia. Embolus was recognized in the lung and seemed to have been caused by hyphae or spores.
There were no proliferative lesions. Exudation and necrosis were seen in main lesions.