TABLE 5.

Test ranges of antimicrobial agents included in this study

Antimicrobial agent	Range (μg/ml)
Ampicillin	0.03–64
Amoxicillin-clavulanic acid (2:1 ratio)	0.03/0.015–64/32
Ceftiofur	0.03–64
Cefquinome	0.015–32
Cefoperazone	0.06–32
Cefotaxime	0.015–32
Ciprofloxacin	0.006–16
Colistin	0.03–16
Doxycycline	0.06–128
Enrofloxacin	0.008–16
Florfenicol	0.12–256
Gentamicin	0.12–256
Imipenem	0.015–32
Nalidixic acid	0.06–128
Neomycin	0.03–128
Penicillin	0.015–32
Streptomycin	0.25–256
Tiamulin	0.03–64
Tetracycline	0.12–128
Tilmicosin	0.06–64
Trimethoprim-sulfamethoxazole (1:19 ratio)	0.015/0.3–32/608