Table 3 Analysis of correlation between antibiotic resistance phenotype and genotype
Antibiotic (resistance gene) | Dairy cattle E. coli isolates (n = 27) | Beef cattle E. coli isolates (n = 44) | ||||||
|---|---|---|---|---|---|---|---|---|
Genotype | Phenotype | Kappa | Genotype | Phenotype | Kappa | |||
S | R | Â | Â | S | R | |||
Penicillin | S | 0 | 0 | 0 | S | 1 | 0 | 1 |
(blaTEM) | R | 0 | 27 | Â | R | 0 | 43 | |
Amoxicillin | S | 0 | 0 | 0 | S | 1 | 0 | 0.06 |
(blaTEM) | R | 5 | 22 | Â | R | 19 | 24 | |
Ampicillin | S | 1 | 21 | 0.02 | S | 6 | 34 | 0.03 |
(blaSHV) | R | 0 | 5 | Â | R | 0 | 4 | |
Cefazolin | S | 8 | 15 | 0.13 | S | 23 | 18 | 0.15 |
(blaOXA) | R | 0 | 4 | Â | R | 0 | 3 | |
Streptomycin | S | 4 | 4 | 0.23 | S | 0 | 0 | 0 |
(aadA1) | R | 5 | 14 | Â | R | 17 | 27 | |
Gentamicin | S | 1 | 0 | 0.12 | S | 18 | 1 | 0.56 |
(aac (3′)-IIa) | R | 9 | 17 |  | R | 9 | 16 | |
Kanamycin | S | 15 | 12 | 0 | S | 24 | 16 | 0.02 |
(aadB) | R | 0 | 0 | Â | R | 1 | 3 | |
Tetracycline | S | 1 | 0 | 0.19 | S | 0 | 1 | −0.04 |
tet (A) | R | 6 | 20 | Â | R | 13 | 30 | |
Tetracycline | S | 4 | 4 | 0.29 | S | 2 | 0 | 0.19 |
tet (B) | R | 4 | 15 | Â | R | 12 | 30 | |
Tetracycline | S | 5 | 20 | −0.55 | S | 0 | 30 | −0.77 |
tet (C) | R | 1 | 1 | Â | R | 14 | 0 | |
Compound Sulfamethoxazole | S | 4 | 12 | 0.06 | S | 18 | 5 | 0.59 |
(sul1) | R | 2 | 9 | Â | R | 4 | 17 | |
Sulfamethoxydiazine | S | 1 | 0 | 0.29 | S | 6 | 4 | 0.26 |
(sul2) | R | 4 | 22 | Â | R | 10 | 24 | |
Florfenico | S | 1 | 0 | 0.08 | S | 18 | 0 | 0.41 |
(floR) | R | 12 | 14 | Â | R | 14 | 12 | |