The effect of sex and time of day on testosterone concentrations in equine saliva and serum
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
The effect of sex and time of day on testosterone concentrations in equine saliva and serum. / Munk, R.; Jensen, Rasmus Bovbjerg; Palme, R.; Christensen, Janne Winther.
I: Comparative Exercise Physiology, Bind 12, Nr. 4, 2016, s. 177-182.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - The effect of sex and time of day on testosterone concentrations in equine saliva and serum
AU - Munk, R.
AU - Jensen, Rasmus Bovbjerg
AU - Palme, R.
AU - Christensen, Janne Winther
PY - 2016
Y1 - 2016
N2 - In terms of exercise, testosterone is important for the growth and maintenance of skeletal muscle mass. Sampling saliva could be a non-invasive alternative to blood sampling for the quantification of testosterone levels in horses. The objective of this study was to compare testosterone concentrations in saliva and serum (sampled simultaneously) from horses of different sexes and at different times throughout the day. A total of 67 warmblood riding horses (21 geldings, 22 mares and 24 stallions) were included in the study. Saliva and blood samples were collected in the morning (06:00-08:00), at midday (11:00-13:00) and in the evening (17:00-19:00). The results demonstrated a weak correlation between saliva and serum testosterone concentrations (rs=0.25, P=0.04). Stallions had higher serum testosterone concentrations than mares and geldings (P<0.001), but there was no significant effect of sex on salivary testosterone concentrations. The time of day did not affect the concentration of testosterone in either saliva or serum. In conclusion, our results indicate that saliva samples cannot be recommended for measuring testosterone levels in horses. However, further research is needed to identify the disturbing factors.
AB - In terms of exercise, testosterone is important for the growth and maintenance of skeletal muscle mass. Sampling saliva could be a non-invasive alternative to blood sampling for the quantification of testosterone levels in horses. The objective of this study was to compare testosterone concentrations in saliva and serum (sampled simultaneously) from horses of different sexes and at different times throughout the day. A total of 67 warmblood riding horses (21 geldings, 22 mares and 24 stallions) were included in the study. Saliva and blood samples were collected in the morning (06:00-08:00), at midday (11:00-13:00) and in the evening (17:00-19:00). The results demonstrated a weak correlation between saliva and serum testosterone concentrations (rs=0.25, P=0.04). Stallions had higher serum testosterone concentrations than mares and geldings (P<0.001), but there was no significant effect of sex on salivary testosterone concentrations. The time of day did not affect the concentration of testosterone in either saliva or serum. In conclusion, our results indicate that saliva samples cannot be recommended for measuring testosterone levels in horses. However, further research is needed to identify the disturbing factors.
KW - horse
KW - hormone
KW - gelding
KW - mare
KW - stallion
KW - testosterone
U2 - 10.3920/CEP160020
DO - 10.3920/CEP160020
M3 - Journal article
VL - 12
SP - 177
EP - 182
JO - Comparative Exercise Physiology
JF - Comparative Exercise Physiology
SN - 1755-2540
IS - 4
ER -
ID: 172639914