NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Activity in the ferret: oestradiol effects and circadian rhythmsThe present study was conducted to determine whether oestradiol increases activity in the European ferret (Mustela furo), whether this effect is sexually dimorphic, and whether a 24-h rhythm is present in the ferret's daily activity. The activity of male and female adult, postpubertally gonadectomized ferrets was monitored while they were maintained singly on a 13:11 light-dark cycle, before and after implantation with oestradiol-17 beta. Gonadectomized male and female ferrets exhibited equal levels of activity, and neither sex exhibited a significant change in activity following oestradiol implantation. None of the ferrets exhibited a strong circadian rhythm, although weak 24-h rhythms and shorter harmonic rhythms were present. Golden hamsters (Mesocricetus auratus), monitored in an identical manner, exhibited strong circadian rhythms. It was concluded that oestradiol administration may not cause an increase in activity in the ferret, and that this species lacks a strong circadian activity rhythm.
Document ID
20040089563
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Stockman, E. R.
(Massachusetts Institute of Technology Cambridge 02139, United States)
Albers, H. E.
Baum, M. J.
Wurtman, R. J.
Date Acquired
August 21, 2013
Publication Date
February 1, 1985
Publication Information
Publication: Animal behaviour
Volume: 33
Issue: Pt 1
ISSN: 0003-3472
Subject Category
Aerospace Medicine
Funding Number(s)
CONTRACT_GRANT: 5 F32 MH08579-02
CONTRACT_GRANT: HD 11722
CONTRACT_GRANT: GM-31199
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Number 21-50
NASA Discipline Regulatory Physiology
NASA Program Biomedicine

Available Downloads

There are no available downloads for this record.
No Preview Available