Table 1.

Clinical scoring system

Score	Respiratory rate (breaths/min)	Fever	Cough	Nasal discharge	Demeanor	Fecal consistency
0	≤49	≤39,5	No cough observed	Normal	Bright, alert	Normal
1	50–54	39,6–39,9	Sporadic cough	Serous or mucous	Mildly depressed	Pasty
2	55–64	40–40,4	More than one sporadic cough every 10 min of observation	Mucopurulent or purulent	Moderately depressed	Runny
3	65–74	>40,5	–	–	Severely depressed	Watery
4	75–85	–	–	–	–	Runny or watery with blood

The score from each category was added to give a daily clinical score for each of the calves in the experiment