Table 1.
Growth characteristics of the major and minor mammary gland pathogens*
| Properties** | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Staphylococci |
+ |
Cocci |
+ |
- |
+ |
β, - |
- |
NR*** |
+ |
- |
NR |
| Streptococci |
+ |
Cocci |
- |
- |
+ |
α, β, - |
- |
NR |
- |
+ |
+, - |
| Enterococci |
+ |
Cocci |
- |
- |
+ |
α |
- |
NR |
- |
+ |
+ |
| Enterobacteria |
- |
Short rods |
+ |
- |
+ |
α, β, - |
+ |
+****, - |
- |
- |
NR |
| Pseudomonads |
- |
Short rods |
+ |
+ |
+ |
β*****, - |
+ |
- |
- |
- |
NR |
| Corynebacteria |
+ |
Short rods |
+, - |
- |
+ |
β, - |
- |
NR |
- |
- |
NR |
| Bacilli | + | Long rods | + | - | + | β, - | - | NR | +, - | - | NR |
*Presence of strict anaerobes and mycoplasmas was not assessed; **properties are 1 = Gram staining, 2 = morphology, 3 = catalase production, 4 = peroxidase production, 5 = growth on Columbia blood agar, 6 = haemolysis on Columbia blood agar, 7 = growth on Gassner agar, 8 = lactose fermentation on Gassner agar, 9 = growth on Chapman agar, 10 = growth on Edwards medium, 11 = esculin hydrolysis on Edwards agar; ***NR = not relevant; ****also named coliforms: lactose-fermenting species of Escherichia, Klebsiella, Enterobacter genders; *****due to the production of pigments the haemolysis zone can appear green to blue-green.