| a cross-sectional study to investigate the occurrence and distribution of intestinal spirochaetes (brachyspira spp.) in three flocks of laying hens. | a cross-sectional study was conducted on a commercial egg-producing farm with a history of wet litter. a total of 600 fresh caecal faecal samples were obtained from under cages of laying hens in three sheds each containing flocks of approximately 5400 hens. samples were cultured for intestinal spirochaetes, and growth on the primary isolation plate was observed under a phase contrast microscope and subjected to pcrs specific for the intestinal spirochaetes brachyspira intermedia and brachyspira ... | 2004 | 15708815 |
| faecal excretion of intestinal spirochaetes by urban dogs, and their pathogenicity in a chick model of intestinal spirochaetosis. | this study aimed to obtain information about the types of spirochaetes colonising urban dogs in thailand, and to investigate their pathogenic potential in a day-old chick model of intestinal spirochaetosis. spirochaetes were isolated from the faeces of six of 47 (12.8%) healthy dogs and 11 of 104 (10.6%) dogs with diarrhoea. their biochemical properties and 16s ribosomal dna sequences were analysed. four isolates were identified as brachyspira pilosicoli, three resembled "brachyspira pulli", nin ... | 2011 | 21320714 |
| antimicrobial susceptibility of brachyspira spp. isolated from commercial laying hens and free-living wild mallards (anas platyrhynchos). | in vitro antimicrobial susceptibility to tylosin, valnemulin, tiamulin, doxycycline, lincomycin and ampicillin was investigated by broth dilution in 48 brachyspira spp. isolates from commercial laying hens (n=30) and free-living wild mallards (anas platyrhynchos) (n=18). presumed pathogens (brachyspira alvinipulli, brachyspira intermedia, brachyspira pilosicoli), commensals (brachyspira murdochii, brachyspira innocens, "brachyspira pulli"), and isolates of undetermined species affiliation were i ... | 2011 | 21812718 |
| phenotypic and genetic diversity among intestinal spirochaetes (genus brachyspira) in free-living wild mallards (anas platyrhynchos) sampled in southern sweden. | brachyspira spp. are anaerobic intestinal spirochaetes that colonize vertebrates. some species cause enteric diseases in pigs, chickens and possibly in humans, whereas others display a commensual relationship with their hosts. the aims were to investigate the prevalence among colonized free-living wild mallards (anas platyrhynchos) of three enteropathogenic brachyspira spp., and to describe the biodiversity of brachyspira spp. isolates. isolates from 150 birds were screened by pcr for 3 pathogen ... | 2011 | 22036527 |
| identification of weakly haemolytic brachyspira isolates recovered from pigs with diarrhoea in spain and portugal and comparison with results from other countries. | weakly haemolytic anaerobic intestinal spirochaetes of the genus brachyspira are commonly identified based on species-specific gene sequences. apart from the pathogenic brachyspira pilosicoli, the distribution and disease associations of the other weakly haemolytic brachyspira species in pigs have not been comprehensively investigated. in this study weakly haemolytic brachyspira isolates (n=67) from spanish and portuguese pigs with diarrhoea, negative in a routine diagnostic pcr for b. pilosicol ... | 2013 | 23928181 |