作者: J. Kolevská , V. Brunclík , M. Svoboda
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摘要: Kolevska J., V. Brunclik, M. Svoboda: Circadian Rhythm of Cortisol Secretion in Dogs Different Daily Activities. Acta Vet. Brno 2003, 72: 599-605. The concentrations immunoreactive cortisol were monitored over 24 hours the serum a total 23 dogs. dogs divided into three groups: (a) control group with no exercise, (b) experimental group, (c) working Blood was collected from each dog at intervals 90‐180 min. different time periods mutually compared using Kruskal-Wallis test for analysis variance. pattern found study. between 10.00 and 13.00 (46.5 ± 17.0 nmol/l) significantly higher (P < 0.05) than those 19.00 22.00 (38.9 16.0 nmol/l). results differed within individual groups. Diurnal rhythms confirmed but not In other significant differences also various to diurnal rhythm established. intervals. suggest that are subject considerable changes during day. Depending on characteristics day night activities can be some