Table 1 Clinical scoring system. The score from each category was added to give a daily clinical score for each of the calves in the experiment
Score | Respiratory rate (breaths/min) | Rectal temperature (°C) | Cough | Nasal discharge | Lung auscultation | Demeanor |
|---|---|---|---|---|---|---|
0 | ≤ 49 | ≤ 39,5 | No cough observed | Normal | No abnormal sounds | Bright, alert |
1 | 50–54 | 39,6–39,9 | Sporadic cough | Serous or mucous | Wheezing sounds | Mildly depressed |
2 | 55–64 | 40–40,4 | More than one sporadic cough every 10 min of observation | Mucopurulent or purulent | – | Moderately depressed |
3 | 65–74 | 40,5–40,9 | – | – | – | Severely depressed |
4 | 75–85 | >  40,9 | – | – | – | – |