A cerebellar abiotrophy of calves

Area of Science:

• Veterinary Neurology
• Animal Pathology
• Genetics

Background:

• A novel progressive cerebellar ataxia was observed in young Holstein calves.
• The condition manifested between three to eight months of age, often with loss of the menace response in non-blind animals.

Purpose of the Study:

• To describe a previously unreported type of postnatal cerebellar ataxia in calves.
• To investigate the clinical, pathological, and potential hereditary basis of this neurological disorder.

Main Methods:

• Clinical case observation and detailed history taking.
• Postmortem examination including gross pathology and histopathology.
• Laboratory analyses, differential diagnosis, and investigation for etiologic agents and genetic factors.

Main Results:

• Postmortem analysis revealed normal cerebellar size but microscopic lesions characterized by cerebellar neuron degeneration without inflammation.
• Affected calves exhibited progressive ataxia and loss of menace response.

Conclusions:

• The described disorder in Holstein cattle is likely an hereditary cerebellar abiotrophy.
• Further genetic studies are warranted to confirm the hereditary nature and identify specific genetic markers.