DOI: 10.1055/s-2003-41356
Changes in Salivary Cortisol Concentrations During a 24-Hour Period in Dogs
Publikationsverlauf
Received 8 October 2002
Accepted after Revision 17 December 2002
Publikationsdatum:
15.August 2003 (online)
Abstract
The purpose of this investigation was to clarify whether salivary cortisol secretion in dogs had a circadian rhythm. Saliva sampling during a 24-hour period was performed in 4 non-consecutive days. Eight adult beagle dogs (4 males and 4 females) were divided into 4 groups, and 2 dogs (1 male and 1 female) were used for each repetition. Saliva samples were taken at 1 h intervals from 9:00 a. m. to 9:00 a. m. of the following day. Salivary cortisol concentrations were determined using enzyme-linked immunosorbent assay. No circadian rhythm was detected for salivary cortisol, and the differences among salivary cortisol concentrations measured every hour were not demonstrated during a 24-hour period in dogs.
Key words
Cortisol - Saliva - Circadian Rhythm - Dog
