TABLE 2.
Distribution of phages obtained from raw milk and whey samples as a function of the strain used for propagationa
| Substrate | Propagating host(s) | No. (%) of positive samples | No. (%) belonging to the following phage species:
|
||
|---|---|---|---|---|---|
| c2 | 936 | P335 | |||
| Milk | MG1614 | 61 | 60 | 1 | |
| IL1403 | 16 | 16 | |||
| Both | 6 | 3 | 3 | ||
| Totalb | 83 (9.21) | 60 (6.66) | 20 (2.22) | 3 (0.33) | |
| Whey | MG1614 | 1 | 1 | ||
| IL1403 | 19 | 19 | |||
| Both | 4 | 1 | 3 | ||
| Totalc | 24 (100) | 1 (4.17) | 20 (83.33) | 3 (12.5) | |
a
The phages, which were isolated by the double-layer propagation method, were classified by PCR by using species-specific primers (19).
b
The percentages are the percentages of 900 milk samples.
c
The percentages are the percentages of 24 whey samples.