Research Article
Isolation, Identification, and Genetic Characterization of Antibiotic Resistance of Salmonella Species Isolated from Chicken Farms
Table 2
Breakpoint values of each antimicrobial agent according to [
36].
| Antimicrobial agent(s) tested | Disc concentration | Salmonella isolates | Resistant ≤ mm | Intermediate (mm) | Sensitive ≥ mm |
| Ampicillin (AM) | 10 μg | 13 | 14 : 16 | 17 | Ciprofloxacin (CIP) | 5 μg | 15 | 16 : 20 | 21 | Chloramphenicol (C) | 30 μg | 12 | 13 : 17 | 18 | Streptomycin (STR) | 10 μg | 11 | 12 : 14 | 15 | Gentamycin (CN) | 10 μg | 12 | 13 : 14 | 15 | Erythromycin (E) | 15 μg | 13 | 14 : 22 | 23 | Doxycycline (Do) | 30 μg | 10 | 11 : 13 | 14 | Levofloxacin (LEV) | 5 μg | 13 | 14 : 16 | 17 | Lincomycin (L) | 2 μg | 9 | 10 : 14 | 15 | Norfloxacin (NOR) | 10 μg | 12 | 13 : 16 | 17 | Colistin (CT) | 10 μg | 10 | 11 : 13 | 14 |
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