Table 3.

Sickness behavior score description¹ recorded on each steer prior to the collection of each blood sample during the LPS challenge (0.25 µg/kg BW)

Score	Description
1	Normal, alert, ears erect; head level or high, eyes open, standing, locomotor activity, responsive, performing maintenance behaviors
2	Calm, but less alert, less activity, less responsive, standing or lying ventral, semi-lateral
3	Lying, calm, head distended or tucked, less alert, signs of some mild respiratory problems (coughing or wheezing)
4	Clinical signs of sickness, respiratory problems, not responsive, head distended, lethargic
5	All/most respiratory problems, mucus/foam. Head distended, not responsive, medical intervention required

¹Sickness behavior score rubric used during the LPS challenge portion of the study as adapted by Carroll et al. (2015).