Pathology in Practice

Abstract

A 2-month-old Holstein bull calf with a history of droopy ears and poor weight gain was submitted alive for euthanasia and necropsy to the Diagnostic Center for Population and Animal Health at Michigan State University. The owner reported that 6 to 8 calves with similar signs in the same herd had died or been euthanized in the preceding 30 days; some affected calves had additionally developed signs of ataxia prior to death.