Table 5. Correlation coefficients of antithrombin activity, platelet counts and blood urea nitrogen concentration with other measures in cows with acute Escherichia coli mastitis on days 2 and 3 after the onset of mastitis.
| (Days after onset) Selected measures |
Non-survivors | Survivors |
|---|---|---|
| Antithrombin activity (%) | ||
| (Day 2) | ||
| Prothrombin time (s) | –0.14 | –0.52* |
| Non-esterified fatty acid (mEq/l) | –0.53 | –0.63* |
| (Day 3) | ||
| Prothrombin time (s) | –0.30 | –0.75* |
| Non-esterified fatty acid (mEq/l) | 0.49 | –0.37 |
| Platelet count (×104/ml) | ||
| (Day 2) | ||
| Prothrombin time (s) | –0.48 | –0.48 |
| (Day 3) | ||
| Prothrombin time (s) | –0.59 | –0.64* |
| Blood urea nitrogen concentration (mg/dl) | ||
| (Day 2) | ||
| Hematocrit (%) | 0.43 | 0.43 |
| Red blood cell count (×104/ml) | 0.38 | 0.58* |
| (Day 3) | ||
| Hematocrit (%) | 0.81* | 0.75* |
| Red blood cell count (×104/ml) | 0.79 | 0.65* |
Non-survivors comprised died or euthanized cows, and survivors were defined as survived or recovered cows from acute E. coli mastitis. *Significance at P<0.05.