Table 1.
Spearman’s coefficient for correlations between immunoglobulin G (IgG), serum total protein (STP), and gamma-glutamyl transferase (GGT), divided for the variables neonatal calf diarrhea (NCD), presence/absence of dehydration and age in Holstein Friesian calves
| Correlation | Classification variable | Spearman’s coefficient |
|---|---|---|
| IgG-STP | NCD (n = 91) | Healthy calves: 0.73 (P 0.004) |
| Calves with NCD: 0.65 (P < 0.001) | ||
| IgG-GGT | NCD (n = 91) | Healthy calves: 0.59 (P 0.007) |
| Calves with NCD: 0.63 (P < 0.001) | ||
| IgG-STP | Dehydration (only calves with NCD) (n = 72) | Normohydrated calves: 0.90 (P < 0.001) |
| Dehydrated calves: 0.63 (P < 0.001) | ||
| IgG - GGT | Age (only calves with NCD) (n = 72) | Age ≤ 3 days: 0.48 (P 0.065) |
| Age > 3 days: 0.71 (P < 0.001) | ||
| IgG-GGT | Dehydration (only calves with NCD) (n = 72) | Normohydrated calves: 0.68 (P < 0.001) |
| Dehydrated calves: 0.68 (P < 0.001) |