Figure 4.

Relationships between measurements of cortisol immunoreactivity in hair, saliva, and feces collected from 7 adult mixed-breed dogs. (A) Measurements from hair samples collected from the left and right shoulders were correlated. There were no significant associations between cortisol immunoreactivity in (B) hair and feces, (C) saliva and hair, or (D) saliva and feces. Each data point represents cortisol immunoreactivity averaged over the 3-mo study period for comparisons of hair (n = 3 per dog) and feces (n = 33 to 41 per dog). For comparisons with saliva, data from samples (n = 23 to 30 per dog) were averaged over the third month only and compared with those of hair (n = 1 per dog) and feces (n = 14 or 15 per dog) collected during the same month.