Table 5.
Antimicrobial Resistance of C. jejuni and C. coli Isolated from Raw Milk and Carcass Samples
| Source of isolate and number of resistance (%) | |||||||
|---|---|---|---|---|---|---|---|
| Milk | Carcass | ||||||
| Resistance profile | No. of resistant isolates (%) | C. jejuni | C. coli | Total | C. jejuni | C. coli | Total |
| Pan-susceptible | 2 (3.9) | 1 (5.6) | 0 | 1 (3.3) | 1 (7.1) | 0 | 1 (4.8) |
| TYL | 1 (2.0) | 0 | 0 | 0 | 1 (7.1) | 0 | 1 (4.8) |
| AMP | 1 (2.0) | 0 | 0 | 0 | 1 (7.1) | 0 | 1 (4.8) |
| STR/AMP | 2 (3.9) | 1 (5.6) | 0 | 1 (3.3) | 0 | 1 (14.3) | 1 (4.8) |
| GEN/TYL/AMP | 1 (2.0) | 0 | 0 | 0 | 1 (7.1) | 0 | 1 (4.8) |
| ERY/TYL/AMP | 3 (5.9) | 1 (5.6) | 0 | 1 (3.3) | 1 (7.1) | 1 (14.3) | 2 (9.5) |
| TYL/STR/AMP | 5 (9.8) | 1 (5.6) | 1 (8.3) | 2 (6.7) | 3 (21.4) | 0 | 3 (14.3) |
| ERY/TYL/STR/AMP | 22 (43.1) | 10 (55.6) | 3 (25.0) | 13 (43.3) | 4 (28.6) | 5 (71.4) | 9 (42.9) |
| GEN/TYL/STR/AMP | 2 (3.9) | 0 | 1 (8.3) | 1 (3.3) | 0 | 1 (14.3) | 1 (4.8) |
| CIP/TYL/STR/AMP | 1 (2.0) | 0 | 0 | 0 | 1 (7.1) | 0 | 1 (4.8) |
| GEN/ERY/TYL/STR/AMP | 2 (3.9) | 1 (5.6) | 1 (8.3) | 2 (6.7) | 0 | 0 | 0 |
| ERY/TYL/STR/AMP/TET | 4 (7.8) | 3 (16.7) | 1 (8.3) | 4 (13.3) | 0 | 0 | 0 |
| CIP/GEN/ERY/TYL/STR/AMP | 1 (2.0) | 0 | 1 (8.3) | 1 (3.3) | 0 | 0 | 0 |
| CIP/ERY/TYL/STR/AMP/TET | 4 (7.8) | 2 (11.1) | 2 (16.7) | 4 (13.3) | 0 | 0 | 0 |
Antimicrobial resistance was determined using the broth microdilution method. Results are shown as numbers of isolates with percentage given in parentheses.
TYL, tylosin.