Table 3.
Antibiotic resistant profiles and multiple resistance index (MAR) of Salmonella isolates from chicken carcasses and products (n = 166 isolates)
| Salmonella serovars | Antimicrobial resistance profile | No. of isolates | MAR index |
|---|---|---|---|
| S. Enteritidis | E, NA, P, AMX, T, SXT, AM, S, N, C, NOR, CP, K | 4 | 0·928 |
| S. Enteritidis | E, NA, P, AMX, T, SXT, AM, S, N, C, NOR, CP | 8 | 0·857 |
| S. Enteritidis | E, NA, P, AMX, T, SXT, AM, S, N, C, NOR | 8 | 0·785 |
| S. Enteritidis | E, NA, P, AMX, T, SXT, AM, S, N, C | 20 | 0·714 |
| S. Enteritidis | E, NA, P, AMX, T, SXT, AM, S, N | 10 | 0·642 |
| S. Enteritidis | E, NA, P, AMX, T, SXT, AM, S | 4 | 0·571 |
| S. Enteritidis | E, NA, P, AMX, T, SXT | 2 | 0·428 |
| S. Enteritidis | E, NA, P, AMX, T | 4 | 0·357 |
| S. Enteritidis | E, NA, P, AMX | 2 | 0·285 |
| S. Typhimurium | E, NA, P, AMX, T, SXT, AM, S, N, C, NOR, CP, K, G | 2 | 1 |
| S. Typhimurium | E, NA, P, AMX, T, SXT, AM, S, N, C, NOR, CP, K | 10 | 0·928 |
| S. Typhimurium | E, NA, P, AMX, T, SXT, AM, S, N, C, NOR, CP | 8 | 0·857 |
| S. Typhimurium | E, NA, P, AMX, T, SXT, AM, S, N, C, NOR | 10 | 0·785 |
| S. Typhimurium | E, NA, P, AMX, T, SXT, AM, S, N, C | 8 | 0·714 |
| S. Typhimurium | E, NA, P, AMX, T, SXT, AM, S, N | 12 | 0·642 |
| S. Kentucky | E, NA, P, AMX, T, SXT, AM, S | 2 | 0·571 |
| S. Kentucky | E, NA, P, AMX,T, SXT, AM | 4 | 0·500 |
| S. Kentucky | E, NA, P, AMX, T, SXT | 4 | 0·428 |
| S. Kentucky | E, NA, P, AMX, T | 2 | 0·357 |
| S. Kentucky | E, NA, P, AMX | 2 | 0·285 |
| S. Kentucky | E, NA, P | 2 | 0·214 |
| S. Kentucky | E | 2 | 0·071 |
| S. Muenster | E, NA, P, AMX,T, SXT, AM | 6 | 0·500 |
| S. Muenster | E, NA, P, AMX,T, SXT | 2 | 0·428 |
| S. Muenster | E, NA | 2 | 0·142 |
| S. Muenster | E | 4 | 0·071 |
| S. Virchow | E, NA, P, AMX, T, SXT, AM, S, N | 2 | 0·642 |
| S. Virchow | E, NA, P, AMX, T, SXT, AM, S | 4 | 0·571 |
| S. Virchow | E, NA, P, AMX,T, SXT, AM | 2 | 0·500 |
| S. Anatum | E, NA, P, AMX,T, SXT | 6 | 0·428 |
| S. Anatum | E, NA, P, AMX,T | 2 | 0·357 |
| S. Haifa | E | 2 | 0·071 |
| Salmonella spp. | E, NA, P, AMX, T | 2 | 0·357 |
| Salmonella spp. | E, NA | 2 | 0·142 |
| Average = 0·582 | |||
E (erythromycin, 15 μg); NA (nalidixic acid, 30 μg); P (penicillin, 10 IU); AMX (amoxicillin, 30 μg); T (oxytetracycline, 30 μg); SXT (sulphamethoxazole, 25 μg); AM (ampicillin, 10 μg); S (streptomycin,10 μg); N (neomycin,10 μg); C (chloramphenicol, 30 μg); NOR (norfloxacin, 10 μg); CP (ciprofloxacin, 5 μg); K (kanamycin, 30 μg); G (gentamicin, 10 μg).