Histopathology of mares aborting due to Equine Amnionitis and Foetal Loss


In 2006, RIRDC funded a 2 year project at the University of Queensland (PRJ000530 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 nonpathogenic, 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.

Project Code


Project Stage


Project Start Date

Sunday, June 1, 2008

Project Completion Date

Friday, April 30, 2010

Journal Articles From Project

Not Available

National Priority

Frontier technologies for building and transforming Australian industries

National Priority

Adoption of R&D

National Priority

HOR-Reduce the incidence and impact of diseases and parasites in horses


Related publications


Histopathology of Mares Aborting Due to Equine Amnionitis and Foetal Loss