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An investigation into the extent of occurrence of novel pathogenic Brachyspira species, including newly recognised agents of swine dysentery, in Australian pig herds. Report prepared for the Co-operative Research Centre for High Integrity Australian Pork

By D.J. Hampson, T. La and N.D. Phillips


Swine dysentery (SD) is a bacterial disease of grower and finisher pigs, causing colitis and bloody mucoid diarrhoea. In infected herds it can have a major economic impact through reduced growth rates, poor food conversion, mortalities and costs of control. The classical agent of SD is an anaerobic spirochaete called Brachyspira hyodysenteriae, although in the last decade two other species named “Brachyspira hampsonii” and “Brachyspira suanatina” have been identified as also causing SD in North America and Europe. As these species may have a different epidemiology to B. hyodysenteriae, the main aim of the current study was to determine whether they occurred in Australia. A subsidiary linked aim was to provide updated information on the occurrence, distribution and characteristics of B. hyodysenteriae strains that are currently present in Australia

Publisher: School of Veterinary and Life Sciences Murdoch University
Year: 2015
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Provided by: Research Repository
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