Table 1.
Distribution of chloramphenicol-resistant Enterococcus faecalis from bulk tank milk in dairy companies.
Dairy Company |
No. of Farms 1 | No. of Isolates | |
---|---|---|---|
Enterococcus
faecalis |
Chloramphenicol Resistance (%) |
||
A | 106 | 52 | 32 (61.5) a |
B | 47 | 39 | 16 (41.0) a,b |
C | 120 | 86 | 21 (24.4) b,c |
D | 123 | 124 | 16 (12.9) c |
Total | 396 | 301 | 85 (28.2) |
1 Bulk tank milk samples were collected each time in the summer and winter seasons by farms. Values in the same column with different subscripts (a–c) differ (p < 0.05) for the isolated ratio between the dairy companies.