A 4-year-old Holstein cow had a history of chronic emaciation and profuse brownish green diarrhea, which was entirely liquid and described as being like water from a hose. The cow was euthanized by an IV overdose sodium pentobarbital injection 5 to 6 weeks after calving because of extreme weakness.
Clinical and Gross Findings
At necropsy, the cow had a body condition score of 2 of 5 and was dehydrated. There was marked loss of muscle mass, serous atrophy of epicardial and perirenal fat depots, and fluid effusion in the abdominal cavity (1.7 L), thoracic cavity (700 mL), and pericardial