Table 1 Number (percentage) of tetracycline resistance genes in doxycycline-resistant E. coli isolates from pigs
| Resistance genes | E. coliisolates |
|---|---|
| tet(A) | 46 (46.5) |
| tet(B) | 12 (12.1) |
| tet(A) + tet(B) | 28 (28.3) |
| tet(A) + tet(M) | 11 (11.1) |
| tet(A) + tet(B) + tet(M) | 2 (2) |
