Figure 3.

A plot between the average non-log transformed hair cortisol concentrations and the weeks of growth for the samples shaved during week 6 for each group of cattle (N = 18). Steers were categorized into one of three groups: OB, old with black hair (~9 years of age), n = 3; OW, old with white hair (~9 years of age), n = 3; YB, young with black hair (~2.5 years of age), n = 12. Weeks of growth were defined as follows: 1–5, number of weeks each sample grew between the initial shave and re-shave sample collections; X, natural, previously unshaved hair.