Fig. 2.

Biometric data A) Body weight gain (%) of animals during the experiment. Data is presented as means ± s.e.m B) The relative adrenal weights of animals (mg/g body weight) C) Serum corticosterone levels (ng/ml) at the end of the experimental period at nadir (8–9 a.m.) and zenith (8–9 p.m.). Data is presented by box plots where the central lines represent the median, and the whiskers represent the minimum and maximum values (B, C).^xxp<0.001 and ^#p < 0.05 indicating the general effect of time and stress, respectively.