Table 3.
Antimicrobial resistance profile of Salmonella isolates from hatcheries and their upstream breeder farm.
| No. | Antimicrobial Resistance Profile a | Hatchery (n b = 36) | Breeder Farm (n = 6) | ||
|---|---|---|---|---|---|
| n (%) | Serovars (n) | n (%) | Serovars (n) | ||
| 1 | NAL | 13 (36.1) | Montevideo (7), Senftenberg (5), untypable (1) | 0 | - |
| 2 | NAL-STR-TET-SXT-AMP-CHL | 12 (33.3) | Albany (11), Omuna (1) | 0 | - |
| 3 | NAL-SXT | 4 (11.1) | Montevideo (4) | 0 | - |
| 4 | NAL-TET-SXT-AMP-CHL | 3 (8.3) | Albany (3) | 0 | - |
| 5 | NAL-TET-SXT-AMP-CHL-FFN | 3 (8.3) | Albany (3) | 0 | - |
| 6 | SXT-AMP-FOX-COL | 1 (2.7) | Untypable (1) | 0 | - |
| 7 | NAL-NEO-STR-TET | 0 | - | 3 (50.0) | Montevideo (3) |
| 8 | NAL-NEO-STR-TET-AMP-XNL | 0 | - | 1 (16.7) | Virchow (1) |
| 9 | NEO-STR-TET | 0 | - | 1 (16.7) | Virchow (1) |
| 10 | NAL-NEO-TET-AMP-XNL | 0 | - | 1 (16.7) | Virchow (1) |
NAL, nalidixic acid; NEO, neomycin; STR, streptomycin; TET, tetracycline; FOX, cefoxitin; XNL, ceftiofur; AMP, ampicillin; SXT, trimethoprim/sulfamethoxazole; COL, colistin; FFN, florfenicol; CHL, chloramphenicol; n, number of isolates.