A Holstein heifer calf has shown severe ataxic nervous symptoms since birth, attributable to a cerebellar syndrome: although the animal is alert and vital, it exhibits severe mobility disorders, including inability to stand up, opisthotonus, and incoordination of all four limbs.
The anatomopathological examination will confirm the presence of cerebellar hypoplasia. Among the possible causes are an inherited genetic defect or an intrauterine BVD infection (ruled out in this case).
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