Table 3.
Prevalence (%) of antibiotic resistance in 304 strains of Clostridium perfringens.
| Antibiotics | No. (%) of antimicrobial-resistant isolates |
||||
|---|---|---|---|---|---|
| Farm 1 (n = 63) | Farm 2 (n = 96) | Farm 3 (n = 70) | Farm 4 (n = 75) | Total (%) (n = 304) | |
| Penicillin | 8 (12.70)a | 1 (1.04)b | 4 (5.71)a,b | 9 (12.00)a | 22 (7.24) |
| Cefotaxime | 1 (1.59)a | 2 (2.08)a | 5 (7.14)a | 1 (1.33)a | 9 (2.96) |
| Cefepime | 2 (3.17)b | 8 (8.33)b | 34 (48.57)a | 14 (18.67)c | 58 (19.08) |
| Imipenem | 0 (0.00)a | 0 (0.00)a | 0 (0.00)a | 0 (0.00)a | 0 (0.00) |
| Florfenicol | 2 (3.17)b | 17 (17.71)a | 3 (4.29)b | 8 (10.67)a,b | 30 (9.87) |
| Fosfomycin | 0 (0.00)b,c | 0 (0.00)b | 4 (5.71)a,c | 11 (14.67)a | 15 (4.93) |
| Norfloxacin | 13 (20.63)b | 26 (27.08)b | 48 (68.57)a | 13 (17.33)b | 100 (32.89) |
| Lincomycin | 57 (90.48)a | 68 (70.83)b | 16 (22.86)c | 59 (78.67)a,b | 200 (65.79) |
| Erythrocin | 34 (53.97)a | 30 (31.25)b | 14 (20.00)b | 36 (48.00)a | 114 (37.50) |
| Tetracycline | 33 (52.38)c | 29 (30.21)b | 62 (88.57)a | 44 (58.67)c | 168 (55.26) |
| Bacitracin | 52 (82.54)a | 58 (60.42)b | 60 (85.71)a | 46 (61.33)b | 216 (71.05) |
| Gentamicin | 62 (98.41)a,b | 94 (97.92)a | 67 (95.71)a,b | 68 (90.67)b | 291 (95.72) |
| No. (%) of multidrug-resistant isolates1 | 62 (98.41)a | 62 (64.58)c | 61 (87.14)b | 63 (84.00)b | 248 (81.58) |
a-cMeans in the same row with different lowercase letters are significantly different (P < 0.05).
1
The number and prevalence of multidrug-resistant isolates from 4 farms.