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Related Experiment Videos

Cerebellar abiotrophy in crossbred cattle.

R J Whittington1, A G Morton, D J Kennedy

  • 1New South Wales Department of Agriculture, Regional Veterinary Laboratory, Wagga Wagga, New South Wales.

Australian Veterinary Journal
|January 1, 1989
PubMed
Summary

Cerebellar abiotrophy, a neurological disorder, affected 9 calves. This genetic condition, possibly multifactorial, caused ataxia and recumbency, presenting a novel challenge in Australian cattle.

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Area of Science:

  • Veterinary Neurology
  • Animal Genetics
  • Pathology

Background:

  • Cerebellar abiotrophy is a progressive neurodegenerative disorder affecting Purkinje cells.
  • This condition has not been previously documented in Australia.

Purpose of the Study:

  • To describe a novel case of cerebellar abiotrophy in Poll Hereford calves in Australia.
  • To investigate the clinical signs, pathological findings, and potential etiology of this condition.

Main Methods:

  • Clinical observation of affected calves.
  • Post-mortem histological examination of cerebellar tissues.
  • Review of clinical signs and pathological findings.

Main Results:

  • Nine of 74 calves exhibited clinical signs consistent with cerebellar abiotrophy.

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  • Lesions included degeneration and loss of Purkinje cells and axonal swellings in the cerebellar cortex.
  • Clinical signs, including ataxia and recumbency, appeared between birth and 8 months of age.

    • Conclusions:

    • The observed condition is consistent with bovine familial convulsions and ataxia, a previously undescribed disease in Australia.
    • An underlying electrophysiological abnormality is proposed, as clinical signs were not fully explained by observed lesions.
    • The etiology is likely genetic with a multifactorial basis.