TABLE 4.
Susceptibility to polyether ionophores and vancomycin.
| Antimicrobial | |||||
|
compound (mg/L) |
|||||
| Strain | Van | Nar | Mon | Sal | Mad |
| SE34 (pREG45) | 0.5 | 2 | 20 | 8 | 32 |
| SE34 (pNAR1402)* | 0.5 | 16 | 20 | 64 | 256 |
| SE34 (pNAR2608)* | 0.5 | 16 | 20 | 64 | 256 |
Van, vancomycin; Nar, narasin; Mon, monensin; Sal, salinomycin; Mad, maduramicin. *The upstream region of these constructs differ by 20 single nucleotide polymorphisms.