Congenital chondrodystrophy of unknown origin in beef herds

Vet J. 2012 Aug;193(2):336-43. doi: 10.1016/j.tvjl.2012.04.016. Epub 2012 May 25.


Congenital chondrodystrophy of unknown origin (CCUO), often referred to as 'acorn calf disease' or congenital joint laxity and dwarfism (CJLD), has been reported in beef cattle in Canada, the United States, Europe, South Africa, New Zealand and Australia. An association of CCUO with grazing drought-affected pastures, feeding hay-only or silage-only diets or supplementation with apple pulp suggests a nutritional cause such as a mineral deficiency. This review compares published reports on CCUO in order to identify common features among outbreaks and to provide a basis for future research into the condition. A protocol for investigation of outbreaks is provided to improve the outcome of future comparisons.

Publication types

  • Review

MeSH terms

  • Animal Husbandry
  • Animals
  • Bone Diseases, Developmental / congenital
  • Bone Diseases, Developmental / epidemiology
  • Bone Diseases, Developmental / etiology
  • Bone Diseases, Developmental / veterinary*
  • Cattle
  • Cattle Diseases / congenital*
  • Cattle Diseases / epidemiology
  • Cattle Diseases / etiology
  • Disease Outbreaks / veterinary*
  • Risk Factors