| pasteurellaceae isolated from tonsillar samples of commercially-reared american bison (bison bison). | as commercial producers of american bison (bison bison) become more numerous, concerns relative to bison health management increase. since loss due to respiratory disease associated with pasteurella and related pasteurellaceae is a major concern for cattle producers, a study was conducted to determine what types of pasteurellaceae are carried by bison to evaluate the potential of pneumonic pasteurellosis in bison herds where management practices are comparable to those used for cattle. tonsillar ... | 1999 | 10480456 |
| characterization of putative haemophilus somnus isolates from tonsils of american bison (bison bison). | three haemophilus somnus isolates (2a, 3a, and 27b) and one h. somnus-like (13b) isolate from tonsils of commercially reared american bison were compared with 2 known h. somnus isolates from cattle, namely, 2336, shown to cause respiratory disease, and 129pt, from the prepuce of an asymptomatic bull. all h. somnus isolates, but not the h. somnus-like isolate, required co2 for growth. biochemical utilization profiles were identical for bison and bovine h. somnus isolates with the exception of alp ... | 1999 | 10480457 |
| seasonal incidence and antibiotic susceptibility patterns of pasteurellaceae isolated from american bison (bison bison). | ninety pharyngeal tonsils were collected from 2-year-old american bison (bison bison) bulls and sampled for members of the pasteurellaceae family. particular attention was paid to seasonal incidence and antimicrobial resistance in serotypes and biovariants. multiple strains of pasteurella haemolytica (39%), p. trehalosi (68%), p. multocida (34%) and haemophilus somnus (13%) were cultured from 86 out of the 90 (96%) tonsil samples. pasteurella trehalosi was the most common and evenly distributed ... | 2001 | 11227200 |
| haemophilus somnus bronchopneumonia in american bison (bison bison). | immunoperoxidase assays were performed on 21 archived formalin-fixed, paraffin-embedded tissues from from american bison (bison bison) with bronchopneumonia. seven of the 21 bison had positive staining for haemophilus somnus in alveolar exudate, visceral pleura, lung parenchyma, and chronic necrotic lesions, and h. somnus was isolated from tissues from 1 of these 7 animals. results suggest that h. somnus is a respiratory pathogen in bison. | 2001 | 11580065 |
| haemophilus somnus (histophilus somni) in bighorn sheep. | respiratory disease and poor lamb recruitment have been identified as limiting factors for bighorn-sheep populations. haemophilus somnus (recently reclassified as histophilus somni) is associated with respiratory disease in american bison, domestic sheep, and cattle. it is also harbored in their reproductive tracts and has been associated with reproductive failure in domestic sheep and cattle. therefore, reproductive tract and lung samples from bighorn sheep were evaluated for the presence of th ... | 2006 | 16548330 |
| first isolation of histophilus somni from goats. | histophilus somni (former name: haemophilus somnus) is a gram-negative, facultative pathogen bacterium that colonises the mucous membranes of cattle and sheep, however it was also described in american bison and bighorn sheep. it can cause local or generalised diseases and asymptomatic carriers can also occur. the presence and the etiological role of this microorganism have not been confirmed in any other domesticated species yet. the purpose of this study was to prove the presence of h. somni i ... | 2009 | 18774660 |
| histophilosis as a natural disease. | histophilus somni is responsible for sporadic disease worldwide in cattle and, to a lesser extent, in small ruminants, bighorn sheep (ovis canadensis), and north american bison (bison bison). the importance of h. somni diseases can be attributed to improved clinical and laboratory recognition, combined with the growth in intensive management practices for cattle. although outbreaks of bovine histophilosis can occur year-round, in northern and southern hemispheres, it is most frequent in late fal ... | 2016 | 26847357 |