TABLE 3.
Antimicrobial resistance of S. enterica serovars Kentucky and Typhimurium isolated from organic and conventional chicken samples
| Antimicrobial resistance profilea | Serovar Kentucky
|
Serovar Typhimurium
|
||
|---|---|---|---|---|
| Organic (n = 72) | Conventional (n = 10) | Organic (n = 19) | Conventional (n = 12) | |
| AUG-AMP-CEP-FOX-STR-TET-TIO | 2 (3)b | 2 (17) | ||
| AUG-AMP-CEP-FOX-TET-TIO | 1 (10) | 2 (17) | ||
| AUG-AMP-CEP-FOX-TIO | 1 (1) | 1 (10) | 8 (67) | |
| GEN-SMX-STR-TET | 5 (7) | 1 (5) | ||
| KAN-STR-TET | 1 (1) | |||
| STR-TET | 40 (56) | 6 (60) | 1 (5) | |
| KAN-NAL | 1 (5) | |||
| TET | 1 (1) | |||
| NAL | 1 (5) | |||
| Susceptible to all tested antimicrobials | 23 (32) | 2 (20) | 15 (79) | 0 (0) |
a
AUG, amoxacillin-clavulanic acid; AMP, ampicillin; CEP, cephalothin; TIO, ceftiofur; FOX, cefoxitin; GEN, gentamicin; KAN, kanamycin; SMX, sulfamethoxazole; STR, streptomycin; TET, tetracycline; NAL, nalidixic acid.
b
The number (percentage) of isolates is shown.