Histogram of baseline plasma cortisol values in lambs and calves at different ages

(Kent et al 1993; Robertson et al 1994)

 

Note that mean values are higher for both lambs (37 nmol/l) and calves (24 nmol/l) at six days of age, compared with lambs and calves of 21 and 42 day of age (15 to 20 nmol/l).