Table 1.
Arrangement of pigs inoculated with the different studied strains.
| Room | Groups- inoculation | Pen D | Pen V |
|---|---|---|---|
| E1 | G1- sterile buffer | 3 control pigs (1 F4-R)a |
2 control pigs (0 F4-R) |
| E2 | G2- E. coli 12-246M | 4 inoculated pigs (0 F4-R) |
4 inoculated pigs (2 F4-R) |
| E3 | G3- E. coli 12-269M | 4 inoculated pigs (1 F4-R) |
4 inoculated pigs (1 F4-R) |
| E4 | G4- E. coli 13-220M | 4 inoculated pigs (0 F4-R) |
4 inoculated pigs (0 F4-R) |
All pigs were susceptible to E. coli F18.
a
Number of pigs resistant to E. coli F4.