دورية أكاديمية
Core and peripheral site measurement of body temperature in short wool sheep.
| العنوان: | Core and peripheral site measurement of body temperature in short wool sheep. |
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| المؤلفون: | Kearton TR; University of New England, Armidale, New South Wales, 2351, Australia; CRC for Sheep Industry Innovation, Armidale, NSW, 2350, Australia. Electronic address: tkearto2@une.edu.au., Doughty AK; University of New England, Armidale, New South Wales, 2351, Australia; CRC for Sheep Industry Innovation, Armidale, NSW, 2350, Australia., Morton CL; University of New England, Armidale, New South Wales, 2351, Australia., Hinch GN; University of New England, Armidale, New South Wales, 2351, Australia; CRC for Sheep Industry Innovation, Armidale, NSW, 2350, Australia., Godwin IR; University of New England, Armidale, New South Wales, 2351, Australia., Cowley FC; University of New England, Armidale, New South Wales, 2351, Australia. |
| المصدر: | Journal of thermal biology [J Therm Biol] 2020 May; Vol. 90, pp. 102606. Date of Electronic Publication: 2020 Apr 28. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Pergamon Press Country of Publication: England NLM ID: 7600115 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 0306-4565 (Print) Linking ISSN: 03064565 NLM ISO Abbreviation: J Therm Biol Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Oxford, New York, Pergamon Press. |
| مواضيع طبية MeSH: | Body Temperature*, Circadian Rhythm/*physiology , Sheep/*physiology, Animals ; Female ; Muscle, Skeletal/physiology ; Neck ; Tail ; Vagina |
| مستخلص: | Understanding circadian rhythms of body temperature is important for the interpretation of single body temperature measurements and the assessment of the physiological state of an animal. The ability to measure body temperature at peripheral locations may also be important in the development of minimally invasive tools for remote temperature measurement in livestock. This study aimed to investigate how well body temperature measured at peripheral sites reflected a commonly used core measurement (vaginal temperature) and the circadian rhythmicity of the body temperature of sheep with a view to practical application in extensive sheep production systems. Eleven crossbred ewes were implanted with peripheral temperature sensing microchips (LifeChip®) which were positioned transversely in the sternocleidomastoid (neck) muscle and subcutaneously under the tail. iButton® temperature loggers were placed intravaginally to record core body temperature measurements (Tv). The body temperature measurements observed at the peripheral sites in the neck (Tn) and tail (Tt) differed significantly to those measured at the core site, Tv (P < 0.05), with Tn lower than Tv and Tt lower than both Tv and Tn. Similarities in circadian rhythm patterns were observed across the day between Tv, Tn and Tt in repeated measures analysis, with a short period of difference between Tv and Tn (from 1400 to 1600 h) and a long period of difference between Tv and Tt (from 1000 to 2100 h) (P < 0.05). These results suggest that neck muscle temperature measurements may have utility in detecting circadian rhythm patterns in core temperature in sheep, but may not accurately reflect absolute core temperatures. Peripheral measures may require adjustment or correction to more accurately reflect absolute core temperature with respect to determining accurate clinical thresholds relative to the expected normal temperature for the time of day observed. Further investigation into the utility and application of peripheral measurement of body temperature is warranted. Competing Interests: Declaration of competing interest We wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome. (Copyright © 2020 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Body temperature; Diurnal rhythm; Microchip; Remote sensor; Sheep; iButton |
| تواريخ الأحداث: | Date Created: 20200602 Date Completed: 20210301 Latest Revision: 20210301 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.jtherbio.2020.102606 |
| PMID: | 32479400 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 0306-4565 |
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| DOI: | 10.1016/j.jtherbio.2020.102606 |