From: In vitro susceptibility of four antimicrobials against Riemerella anatipestifer isolates: a comparison of minimum inhibitory concentrations and mutant prevention concentrations for ceftiofur, cefquinome, florfenicol, and tilmicosin
Drug
No. of isolates having different ratios of MPC to MIC
1
2
4
8
16
32
64
128
256
512
>512
Ceftiofura
3
6
22
25
14
9
Cefquinomeb
0
5
11
23
Florfenicol c
30
18
12
Tilmicosin d
15
20
17
10