Table 1.
Biological values (means ± SD) for true positive and true negative calves.
| Health status | Core temp (°C) | White blood cells (×103/μL−1) | Clinical scorea | Neut/lymph ratiob | Serum cortisol (μmol/L) | IRT (°C) | IRT mean ratioc |
|---|---|---|---|---|---|---|---|
| True positive (TP) n = 9 | 40.2 ± 0.2 | 11.357 ± 2.646 | 5.4 ± 1.1 | 0.103 ± 0.086 | 161.7 ± 32.5 | 35.7 ± 0.35 | 1.018 ± 0.008 |
| True negative (TN) n = 44 | 39.0 ± 0.25 | 8.911 ± 1.20 | 2.2 ± 1.3 | 0.167 ± 0.11 | 107.8 ± 50.04 | 34.91 ± 0.22 | 1.000 ± 0.003 |
| Probabilityd | P < 0.01 | P > 0.01 | P < 0.01 | P = 0.13 | P < 0.01 | P < 0.01 | P < 0.01 |
a
See Section 2 for a full description of clinical scores.
b
Neutrophil/lymphocyte ratio.
c
Data represents the peak values for orbital maximum temperatures for the TP and the average orbital maximum values during the same time period for the TN calves.
d
Probability determined by least squares analysis two tailed t-test.