Noyes, N. R.; Benedict, K. M.; Gow, S. P.; Waldner, C. L.; Reid-Smith, R. J.; Booker, C. W.; McAllister, T. A.; Morley, P. S. (United States of America)
Epidemiology and Infection (2016)
Pens of cattle (n=300) in four feedlots in Alberta, Canada were enrolled in the study and composite pen-floor fecal samples were collected at the beginning of the feeding period, and at least once again during the remainder of the feeding period. Feedlot personnel used a chute-side customized health information system to record all parenteral and in-feed AMD treatmetns for all cattle in enrolled pens from the day of arrival until the day that the last sample was collected.
Bacterial isolates were collected as part of another project intended to develop and evaluate methods for AMR surveillance in beef feedlot cattle. Twent fresh fecal samples of ~14g each were collected in a standard spatial pattern from each pen floor and then mixed together for 1 min and 10g was removed for further processing.
AST Method: Multiple Methods
Reference explicitly reports AST breakpoints: False
Reference reports using a MIC table: False
Is Excluded: False
| Country | Sub-Region | Sub-Region Detail |
|---|---|---|
| United States of America | None | None |
| ID | Note | Resolution |
|---|
| Title | Host | Host | Production Stage | Description | ROs |
|---|---|---|---|---|---|
| Antimicrobial use | Cattle | Not Specified | Farm | Recent parenteral quinolone exposure (<6 days prior to sample collection) | 1 |