Table 2.
Isolation rates of pathogenic bacteria from positive milk samples*
| |
Staphylococci |
Entero-cocci |
Streptococci |
Entero-bacteria |
Bacilli |
|||
|---|---|---|---|---|---|---|---|---|
| Number of cows | bH** | NonH | αH Esc + ** | αH Esc- | βH | Lac + ** | Lac- | βH |
| 6 |
X |
|
|
|
|
|
|
|
| 28 |
|
X |
|
|
|
|
|
|
| 6 |
|
|
X |
|
|
|
|
|
| 26 |
|
|
|
X |
|
|
|
|
| 1 |
X |
X |
|
|
|
|
|
|
| 1 |
X |
|
|
X |
|
|
|
|
| 3 |
|
X |
X |
|
|
|
|
|
| 5 |
|
X |
|
X |
|
|
|
|
| 8 |
|
|
X |
X |
|
|
|
|
| 1 |
|
|
X |
|
|
X |
|
|
| 1 |
X |
X |
X |
|
|
|
|
|
| 3 |
X |
|
X |
X |
|
|
|
|
| 4 |
|
X |
X |
X |
|
|
|
|
| 1 |
|
X |
|
|
|
X |
X |
|
| 1 |
|
|
X |
X |
X |
|
|
|
| 1 |
X |
X |
X |
|
|
|
X |
X |
| N positive samples | 13 | 44 | 28 | 48 | 1 | 2 | 2 | 1 |
*see M&M for decisional criteria (presence of strict anaerobes and mycoplasmas was not assessed); **H = haemolytic; Esc = hydrolysis of esculin on Edwards agar; Lac = fermentation of lactose on Gassner agar.