Table 6.

Classes and concentrations of antimicrobial agents used in the study.

Class of Antimicrobial Agents	Type of Antimicrobial Agents Used	Concentration (µg)
Aminoglycosides	Spectinomycin (SPE)	100
	Streptomycin (S)	10
	Kanamycin (K)	30
	Gentamycin (CN)	10
Beta lactams	Ampicillin (AMP)	10
	Amoxicillin-clavulanic acid (AMOX)	30
Cephalosporin	Ceftazidime (CAZ)	30
	Cefotaxime (CET)	30
Fluoroquinolones	Nalidixic acid (NA)	30
	Norfloxacin (NOR)	10
	Ciprofloxacin (CIP)	5
Macrolides	Erythromycin (E)	15
Phenicols	Chloramphenicol (C)	30
Sulphonamides	Sulfamethoxazole-trimethoprim (SXT)	23.75/1.25
Tetracyclines	Oxytetracycline (OXT)	30
	Doxycycline (DO)	30