Figure 1
Juvenile development in male and female guinea pigs maintained on a control, high-PUFA, or high-SFA diet. (a) Effects of age on saliva cortisol concentrations (number of observations: 561). (b) Effects of age and saliva cortisol concentrations (insert graph; saliva cortisol: 0–140 ng/ml, body mass: 400–700 g) on body mass (number of observations: 561). (c) Effects of age and saliva cortisol concentrations (insert graph; saliva cortisol: 0–140 ng/ml, head length: 62–74 mm) on head length (number of observations: 475). (a–c) Filled areas represent 95% confidence intervals. Sample sizes: control: 14♂, 10♀; PUFA: 14♂, 9♀; SFA: 13♂, 9♀. Mean number of repeated measurements: 8.13 (cortisol and body mass), 6.88 (head length). Statistics and effect sizes are outlined in Table 1.
