Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Vaginal temperature rhythms in sheep

W G Hunsaker, B Reiser, M Wolynetz

    International Journal of Chronobiology
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Ovariectomized sheep exhibit a predominant circadian rhythm in vaginal temperature, with daily temperature fluctuations as small as 0.05 degrees Celsius. This study reveals ultradian rhythms in some animals, indicating complex thermoregulation patterns.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    [Hemoptysis and acute kidney injury in COVID-19].

    Medizinische Klinik, Intensivmedizin und Notfallmedizin·2020
    Same author

    Gold nanorods with conjugated polymer ligands: sintering-free conductive inks for printed electronics.

    Chemical science·2018
    Same author

    Multivalent bonds in self-assembled bundles of ultrathin gold nanowires.

    Physical chemistry chemical physics : PCCP·2016
    Same author

    Microglial stability and repopulation in the retina.

    The British journal of ophthalmology·2005
    Same author

    Confidence intervals for the 50 per cent response dose.

    Statistics in medicine·2003
    Same author

    Minimal and best linear combination of oxidative stress and antioxidant biomarkers to discriminate cardiovascular disease.

    Nutrition, metabolism, and cardiovascular diseases : NMCD·2003
    Same journal

    Alterations in circadian rhythmicity in calcium oxalate renal stone formers.

    International journal of chronobiology·1983
    Same journal

    Altered circadian periodicities in oral temperature and mood in men on an 18-hour work/rest cycle during a nuclear submarine patrol.

    International journal of chronobiology·1983
    Same journal

    Period lengthening of human circadian rhythms by lithium carbonate, a prophylactic for depressive disorders.

    International journal of chronobiology·1983
    Same journal

    Human circannual rhythms over a broad spectrum of physiological processes.

    International journal of chronobiology·1983
    Same journal

    Circadian variation in the susceptibility of mouse epidermis to chemical carcinogens.

    International journal of chronobiology·1982
    Same journal

    Circadian rhythms in mouse epidermis: variation in the numbers of basal and differentiating cells, cell density, and cell loss.

    International journal of chronobiology·1982
    See all related articles

    Area of Science:

    • Animal physiology
    • Chronobiology
    • Thermoregulation

    Background:

    • Ovariectomy in adult sheep can alter physiological rhythms.
    • Understanding thermoregulation is crucial for animal welfare and research.

    Purpose of the Study:

    • To investigate the presence and characteristics of circadian and ultradian rhythms in vaginal temperature of ovariectomized sheep.
    • To quantify the amplitude and timing of identified temperature rhythms.

    Main Methods:

    • Six ovariectomized adult sheep were monitored in a controlled environment.
    • Vaginal temperatures were recorded continuously over 12-17 days.
    • Time-series analyses, including periodogram, correlogram, and spectral density, were applied to identify rhythms.

    Related Experiment Videos

    Main Results:

    • A predominant circadian rhythm in vaginal temperature was detected in 5 out of 6 sheep.
    • Ultradian rhythms (12-hour and 8-hour periods) were observed in some animals.
    • The amplitude of the circadian rhythm ranged from 0.05 to 0.16 degrees C, with daily temperature peaks occurring between 08:51 and 17:27.

    Conclusions:

    • Ovariectomized sheep display significant circadian rhythms in vaginal temperature.
    • The study highlights the presence of both circadian and ultradian thermoregulatory patterns in this animal model.
    • These findings contribute to understanding the influence of reproductive status on physiological rhythms.