Histopathology of mares aborting due to Equine Amnionitis and Foetal Loss

The University of Queensland

  • Project code: PRJ-002592

  • Project stage: Closed

  • Project start date: Sunday, June 1, 2008

  • Project completion date: Friday, April 30, 2010

  • National Priority: HOR-Thoroughbred diseases and parasites


In 2006, RIRDC funded a 2 year project at the University of Queensland (PRJ-000530 Investigation of causal factors for equine amnionitis and foetal loss) that would seek to establish the role of the processionary caterpillar in the aetiology of EAFL. The project has shown unequivocally that the processionary caterpillar and the exoskeleton of the caterpillar will induce abortion in mares in a manner that is similar to that seen in field cases with non-pathogenic, environmental bacteria being isolated from the aborted foetuses. In the initial RIRDC application detailed histopathology was to be undertaken on aborted foetuses and associated membranes.


Thoroughbred Horses

Research Organisation

The University of Queensland

Objective Summary

Investigate the effect of Processionary caterpillars on the mare and so determine the role of the mare in the pathogenesis of Equine Amnionitis and Foetal Loss (EAFL) by detailing the histopathological changes seen in mares that have aborted due to this condition.