Table 4.
Significance of the proportion (%) of antimicrobial resistant bacterial species from cases of bovine mastitis. Ecoli (n = 34), Koxy (n = 4), Kpne (n = 13), SA (n = 66), Sdys (n = 36), and Sube (n = 40).
| Antimicrobial | Bacterial spp. | No. AMR Isolate | Percentage (%) | 95% CI Lower | 95% CI Upper | Sig. |
|---|---|---|---|---|---|---|
| AMP | Ecoli (n = 34) | 2 | 5.9 | 0.7 | 19.7 | 0.000 |
| Koxy (n = 4) | 3 | 75 | 19.4 | 99.4 | 0.625 | |
| Kpne (n = 13) | 12 | 92.3 | 64 | 99.8 | 0.003 | |
| SA (n = 66) | 0 | 0 | 0 | 5.4 | 0.000 | |
| Sdys (n = 36) | 0 | 0 | 0 | 9.7 | 0.000 | |
| Sube (n = 40) | 28 | 70 | 53.5 | 83.4 | 0.018 | |
| PEN | SA | 0 | 0 | 0 | 5.4 | 0.000 |
| Sdys | 2 | 5.6 | 7 | 18.7 | 0.000 | |
| Sube | 31 | 77.5 | 61.5 | 89.2 | 0.001 | |
| ERY | Ecoli | 33 | 97.1 | 84.7 | 99.9 | 0.000 |
| Koxy | 4 | 100 | 39.8 | 100 | 0.125 | |
| Kpne | 13 | 100 | 75.3 | 100 | 0.000 | |
| SA | 1 | 1.5 | 0 | 8.2 | 0.000 | |
| Sdys | 2 | 5.6 | 7 | 18.7 | 0.000 | |
| Sube | 32 | 80 | 64.4 | 90.9 | 0.000 | |
| OXA | SA | 0 | 0 | 0 | 5.4 | 0.000 |
| Sdys | 8 | 22.2 | 10.1 | 39.2 | 0.002 | |
| Sube | 27 | 67.5 | 50.9 | 81.4 | 0.04 | |
| PRL | SA | 0 | 0 | 0 | 5.4 | 0.000 |
| Sdys | 1 | 2.8 | 0.1 | 14.5 | 0.000 | |
| Sube | 32 | 80 | 64.4 | 90.9 | 0.000 | |
| SA | 0 | 0 | 0 | 5.4 | 0.000 | |
| Sdys | 2 | 5.6 | 0.7 | 18.7 | 0.000 | |
| Sube | 27 | 67.5 | 50.9 | 81.4 | 0.04 | |
| TET | Ecoli | 14 | 41.2 | 24.6 | 59.3 | 0.391 |
| Koxy | 1 | 25 | 0.6 | 80.6 | 0.625 | |
| Kpne | 5 | 38.5 | 13.9 | 68.4 | 0.581 | |
| SA | 66 | 100 | 0 | 5.4 | 0.000 | |
| Sdys | 34 | 94.4 | 81.3 | 99.3 | 0.000 | |
| Sube | 31 | 77.5 | 61.5 | 89.2 | 0.0001 | |
| CEPH | Ecoli | 11 | 32.4 | 17.4 | 50.5 | 0.059 |
| Koxy | 1 | 25 | 0.6 | 80.6 | 0.625 | |
| Kpne | 7 | 53.8 | 25.1 | 80.8 | 1 | |
| SA | 0 | 0 | 0 | 5.4 | 0.000 | |
| Sdys | 0 | 0 | 0 | 9.7 | 0.000 | |
| Sube | 25 | 62.5 | 45.8 | 77.3 | 0.155 | |
| CFT | Ecoli | 1 | 2.9 | 0.1 | 15.3 | 0.000 |
| Koxy | 4 | 100 | 0 | 60.2 | 0.125 | |
| Kpne | 7 | 53.8 | 25.1 | 80.8 | 1 | |
| SA | 0 | 0 | 0 | 5.4 | 0.000 | |
| Sdys | 0 | 0 | 0 | 9.7 | 0.000 | |
| Sube | 25 | 62.5 | 45.8 | 77.3 | 0.155 | |
| SULPH | Ecoli | 10 | 29.4 | 15.1 | 47.5 | 0.026 |
| Koxy | 2 | 50 | 6.8 | 93.2 | 1 | |
| Kpne | 7 | 53.8 | 25.1 | 80.8 | 1 | |
| SA | 10 | 15.2 | 7.5 | 26.1 | 0.000 | |
| Sdys | 36 | 100 | 90.3 | 100 | 0.000 | |
| Sube | 40 | 100 | 91.2 | 100 | 0.000 |
Ecoli: E. coli, SA: Staphylococcus aureus, Sube: Streptococcus uberis, Sdys: Streptococcus dysgalactiae, Koxy: K. oxytoca, Kpne: K. pneumoniae, AMP: ampicillin, PEN: penicillin, ERY: erythromycin, OXA: oxacillin, PRL: pirlimycin, P/N: penicillin-novobiocin, TET: tetracycline, CEPH: cephalothin, CFT: ceftiofur, SULPH: sulfadimethoxine, No AMR isolates: number of antimicrobial resistant isolates, CI: confidence interval, Sig: significance.