Moro, M. H.; Beran, G. W.; Hoffman, L. J.; Griffith, R. W. (United States of America)
Letters in Applied Microbiology (1998)
The study reported in this paper was carried out at a farm where no antimicrobials had been incorporated into swine feed for the past 10 years. Therapeutic use of antimicrobial drugs has been limited to very rare injections of penicillin, streptomycin or tylosin. During the past 2 years, fresh faecal samples (one per animal) were collected monthly in order to monitor the prevalence of antibiotic resistant E. coli, and a profile of antibiograms of the herd was obtained. Initially, 10 randomly selected pigs from each of the following age groups were sampled: (a) multiparous sows; (b) gilts in first gestation; (c) grower pigs between 6 and 10 weeks old; (d) finisher hogs between 4 and 5 months of age. In subsequent faecal collections, only 10 randomly selected finisher hogs were sampled. Collections were made following a period of at least 7 d of weather considered to be seasonally normal and stable (baseline). Cold stress faecal samples were collected 24 h following sudden and drastic drops in temperature (> 15 °C) during winter months.
During the past 2 years, fresh faecal samples (one per animal) were collected monthly in order to monitor the prevalence of antibiotic resistant E. coli, and a profile of antibiograms of the herd was obtained.
AST Method: Multiple Methods
Reference explicitly reports AST breakpoints: True
Reference reports using a MIC table: False
Is Excluded: False
| Country | Sub-Region | Sub-Region Detail |
|---|---|---|
| United States of America | Other (Other) | Minnesota |
| ID | Note | Resolution |
|---|
| Title | Host | Host | Production Stage | Description | ROs |
|---|---|---|---|---|---|
| Cold stress | Swine | Weaners | Farm | Cold stress faecal samples were collected 24h following sudden and drastic drops in temperature (>15 °C) during winter months. Control: Collections were made following a period of at least 7d of weather considered to be seasonally normal and stable. | 2 |
| Cold stress | Swine | Grower-finisher | Farm | Cold stress faecal samples were collected 24h following sudden and drastic drops in temperature (>15 °C) during winter months. Control: Collections were made following a period of at least 7d of weather considered to be seasonally normal and stable. | 4 |
| Cold stress | Swine | Sows | Farm | Cold stress faecal samples were collected 24h following sudden and drastic drops in temperature (>15 °C) during winter months. Control: Collections were made following a period of at least 7d of weather considered to be seasonally normal and stable. | 2 |
| Cold stress | Swine | Not Specified | Farm | Cold stress faecal samples were collected 24h following sudden and drastic drops in temperature (>15 °C) during winter months. Control: Collections were made following a period of at least 7d of weather considered to be seasonally normal and stable. | 2 |