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Body Temperature Monitoring Using Subcutaneously Implanted Thermo-loggers from Holstein Steers

ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 2016, 29(2), , pp.299-306 [Peer Reviewed Journal]

COPYRIGHT(C) KYOBO BOOK CENTRE ALL RIGHTS RESERVED ;COPYRIGHT 2016 Asian - Australasian Association of Animal Production Societies ;COPYRIGHT 2016 Asian - Australasian Association of Animal Production Societies ;Copyright © 2016 by Asian-Australasian Journal of Animal Sciences 2016 ;ISSN: 1011-2367 ;EISSN: 1976-5517 ;EISSN: 2765-0235 ;DOI: 10.5713/ajas.15.0353 ;PMID: 26732455

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  • Title:
    Body Temperature Monitoring Using Subcutaneously Implanted Thermo-loggers from Holstein Steers
  • Author: Y. Lee ; J.D. Bok ; H.J. Lee ; 이홍구 ; D. Kim ; I. Lee ; 강상기 ; 최윤재
  • Subjects: Body temperature ; Cattle ; Circadian Rhythm ; Fever Detection ; Measurement ; Methods ; Patient monitoring ; Physiological aspects ; Subcutaneous Temperature ; Thermo-logger ; Thermometers ; 축산학
  • Is Part Of: ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 2016, 29(2), , pp.299-306
  • Description: Body temperature (BT) monitoring in cattle could be used to early detect fever from infectious disease or physiological events. Various ways to measure BT have been applied at different locations on cattle including rectum, reticulum, milk, subcutis and ear canal. In other to evaluate the temperature stability and reliability of subcutaneous temperature (ST) in highly fluctuating field conditions for continuous BT monitoring, long term ST profiles were collected and analyzed from cattle in autumn/winter and summer season by surgically implanted thermo-logger devices. Purposes of this study were to assess ST in the field condition as a reference BT and to determine any location effect of implantation on ST profile. In results, ST profile in cattle showed a clear circadian rhythm with daily lowest at 05:00 to 07:00 AM and highest around midnight and rather stable temperature readings (mean±standard deviation [SD], 37.1°C to 37.36°C±0.91°C to 1.02°C). STs are 1.39°C to 1.65°C lower than the rectal temperature and sometimes showed an irregular temperature drop below the normal physiologic one: 19.4% or 36.4% of 54,192 readings were below 36.5°C or 37°C, respectively. Thus, for BT monitoring purposes in a fever-alarming-system, a correction algorithm is necessary to remove the influences of ambient temperature and animal resting behavior especially in winter time. One way to do this is simply discard outlier readings below 36.5°C or 37°C resulting in a much improved mean±SD of 37.6°C±0.64°C or 37.8°C±0.55°C, respectively. For location the upper scapula region seems the most reliable and convenient site for implantation of a thermo-sensor tag in terms of relatively low influence by ambient temperature and easy insertion compared to lower scapula or lateral neck.
  • Publisher: Korea (South): 아세아·태평양축산학회
  • Language: Korean;English
  • Identifier: ISSN: 1011-2367
    EISSN: 1976-5517
    EISSN: 2765-0235
    DOI: 10.5713/ajas.15.0353
    PMID: 26732455
  • Source: Alma/SFX Local Collection
    PubMed Central (PMC)
    DOAJ Directory of Open Access Journals
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