Publications
| comparison of florfenicol and tulathromycin for the treatment of undifferentiated fever in alberta feedlot calves. | the purpose of this study was to compare the efficacy and cost-effectiveness of florfenicol versus tulathromycin for initial treatment of undifferentiated fever in fall-placed steer calves that received metaphylactic tilmicosin on arrival at the feedlot. no significant differences (p > .10) were observed in undifferentiated fever relapses or the crude case fatality rate. calves treated with florfenicol had a lower case fatality rate (p = .04) for bovine respiratory disease and histophilus diseas ... | 2008 | 19177332 |
| genetic diversity and tetracycline resistance genes of histophilus somni. | nasal swabs were collected at three time points from 2378 calves in four feedlots and cultured for histophilus somni to assess genetic relatedness and tetracycline resistance. the proportions of animals carrying tetracycline resistant isolates were 0.32% at arrival, 14.82% at interim, and 0.80% at exit. the 606 h. somni isolates recovered were compared by pulsed-field gel electrophoresis (pfge), screened for the presence of plasmids, and assessed for the tetracycline resistance genes tet(a), tet ... | 2011 | 21482045 |