| immunohistochemical study of hemophilus somnus, mycoplasma bovis, mannheimia hemolytica, and bovine viral diarrhea virus in death losses due to myocarditis in feedlot cattle. | the purpose of this study was to determine the presence of hemophilus somnus, mycoplasma bovis, mannheimia hemolytica, and bovine viral diarrhea virus (bvdv) in lesional tissues of feeder calves dying with myocarditis. tissues from the heart and lungs of 92 calves dying with myocarditis in alberta feedlots were immunohistochemically stained for the antigens of these agents. tissues from 44 calves dying from noninfectious causes and 35 calves dying with pneumonia were tested as controls. hemophil ... | 2004 | 15072195 |
| pathogens of bovine respiratory disease in north american feedlots conferring multidrug resistance via integrative conjugative elements. | in this study, we determined the prevalence of bovine respiratory disease (brd)-associated viral and bacterial pathogens in cattle and characterized the genetic profiles, antimicrobial susceptibilities, and nature of antimicrobial resistance determinants in collected bacteria. nasopharyngeal swab and lung tissue samples from 68 brd mortalities in alberta, canada (n = 42), texas (n = 6), and nebraska (n = 20) were screened using pcr for bovine viral diarrhea virus (bvdv), bovine respiratory syncy ... | 2014 | 24478472 |
| risk factors for mycoplasma bovis-associated disease in farmed bison (bison bison) herds in western canada: a case-control study. | north american bison producers have been attempting to control and prevent mycoplasma bovis-associated disease without the benefit of bison-specific knowledge. the objective of this study was to determine the clinical presentation of disease associated with m. bovis infection in western canadian farmed bison, and to identify herd-level risk factors for m. bovis-associated disease. bison producers (n=49) from western canada (manitoba, saskatchewan, alberta, and british columbia) were selected for ... | 2016 | 27317324 |
| a serologic survey of mycoplasma spp. in farmed bison ( bison bison) herds in western canada. | mycoplasma bovis is emerging as an important pathogen of farmed bison in north america and is associated with high morbidity and mortality in affected herds. we developed an in-house elisa to detect antibodies against mycoplasma spp. in bison sera. the aims of the study were to estimate the seroprevalence against mycoplasma spp. in bison herds with or without past history of m. bovis-associated disease, and to determine potential risk factors for seropositivity to mycoplasma spp. in farmed bison ... | 2017 | 28578617 |