The periplasmic-flagellum (PF) proteins of Triton X-100-soluble and Triton X-100-insoluble sodium dodecyl sulfate-treated fractions from reference and field strains of Serpulina hyodysenteriae, Serpulina innocens, and Serpulina pilosicoli were characterized by Western blotting with a rabbit polyclonal antibody (PAb) specific for the 44-kDa PF sheath protein of S. hyodysenteriae (Z. Li, F. Dumas...

BACKGROUND "Brachyspira hampsonii", discovered in North America in 2010 associated with dysentery-like illness, is an economically relevant swine pathogen resulting in decreased feed efficiency and increased morbidity, mortality and medication usage. "B. hampsonii" clade II strain 30446 has been shown to be causally associated with mucohemorrhagic diarrhea and colitis. Our objectives were to de...

Abstract Introduction Prior to the 2000s, swine dysentery was considered be caused only by Brachyspira hyodysenteriae with contributing commensal intestinal anaerobes. Nowadays, it is known that disease three strongly beta-haemolytic species of anaerobic spirochaetal genus Brachyspira, i.e. B. and newly emerged hampsonii suanatina. Material Methods The present investigation carried out in Novem...

Three liquid media that differ slightly in composition but not in the method of preparation were developed for the propagation of Treponema hyodysenteriae and Treponema innocens. The three media are unique in that all components are sterilized by autoclaving before use. These media supported better growth of T. hyodysenteriae than did previously used liquid media.

The lipids of Treponema innocens, type strain B256, formerly considered a nonpathogenic isolate of T. hyodysenteriae, have been analyzed and compared with the lipids of T. hyodysenteriae. The lipids of T. innocens comprised 16% of the cell dry weight. Polar lipids amounted to about two-thirds of the total lipids and consisted of 61.9% phospholipids and 38.1% glycolipid. Neutral lipids consisted...

an eleven month old filly was referred to the research and teaching hospital of the faculty of veterinary medicine at the university of tehran. the animal presented a three-week history of diarrhea and previous treatments had failed to effect a recovery. based on the history, clinical findings and results of laboratory investigations, it was assumed that a gastrointestinal disorder was affectin...