Remote physiological monitoring of livestock - An implantable radio-telemetry system.

Mitchell, M.A.; Kettlewell, P.J.; Lowe, John C.; Hunter, Richard R; King, Tasha M.; Ritchie, M.; Bracken, John

doi:10.13031/2013.7114

Cited by 8 publications

(4 citation statements)

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“…The present study investigated the potential use of new minimally invasive methods for the estimation of CBT in broiler chickens by evaluating their performance against a proven but invasive methodology for the continuous measurement and recording of CBT, namely a temperature loggers (Mitchell et al, 2011;2008).…”

Section: Discussionmentioning

confidence: 99%

Validation of an intramuscularly-implanted microchip and a surface infrared thermometer to estimate core body temperature in broiler chickens exposed to heat stress

Iyasere

Edwards

Bateson

et al. 2017

Computers and Electronics in Agriculture

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Section: Discussionmentioning

confidence: 99%

Validation of an intramuscularly-implanted microchip and a surface infrared thermometer to estimate core body temperature in broiler chickens exposed to heat stress

Iyasere

Edwards

Bateson

et al. 2017

Computers and Electronics in Agriculture

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“…Body temperature in livestock has been measured with various techniques, including: infrared thermal imaging, rectal probe, catheterization (Marlin et al 1999;Kohn et al 1999), and tympanic probe (Guidry, 1966). Some devices use telemetric technology, which allows data to be collected wirelessly (Brown-Brandl et al 2001;Hahn et al 1990;Mitchell et al 2000a). Green (2005) stated that techniques used for measuring body temperature of horses include rectal thermometers and sensors, catheterizations, blood temperature, surface temperatures, or deep body sensors.…”

Section: Introductionmentioning

confidence: 99%

Assessment of an Injectable RFID Temperature Sensor for Indication of Horse Well-Being

Marsh

Gates

Day

et al. 2008

2008 Providence, Rhode Island, June 29 - July 2, 2008

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The authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of the American Society of Agricultural and Biological Engineers (ASABE), and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations are not subject to the formal peer review process by ASABE editorial committees; therefore, they are not to be presented as refereed publications.

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“…Core body temperature has been measured by various methods, ranging from manual rectal probe to telemetric, implanted transmitters. Remote, continuous recording of CBT has proven valuable in numerous studies of poultry (Hamrita et al, 1998;Mitchell et al, 2001;Brown-Brandl et al, 2001;Yanagi et al, 2002;Xin, 2003a, 2003b).…”

mentioning

confidence: 99%

Effects of Stocking Density and Group Size on Thermoregulatory Responses of Laying Hens under Heat Challenging Conditions

Green¹,

Xin²

2008

Livestock Environment VIII, 31 August - 4 September 2008, Iguassu Falls, Brazil

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Sectors of the U.S. cage layer industry have begun adopting practices of reduced stocking density (i.e., increased cage floor space per hen) and varying group sizes. This study was conducted with 24 groups of 48 W-36 laying hens (39 to 46 weeks old) to assess the effects of cage floor space or stocking density (SD) (348, 387, 465, or 581 cm2 hen-1; 54, 60, 72, or 90 in.2 hen-1) and group size (GS) (8 or 16 hens per cage) on the ability of the hens to cope with heat challenge. Data were collected at thermoneutral (24°C or 76°F) and warm conditions (32°C or 90°F, followed by 35°C or 95°F). No differences in core body temperature (CBT) of the hens were observed among the treatment regimens at 24°C. In general, mean CBT increased with heat exposure duration (P < 0.0001) but leveled off after the 32°C phase. At 32°C, CBT was higher for GS of 16 vs. 8 (42.3°C vs. 42.1°C, P = 0.05) and higher for SD of 348 and 387 cm2 hen-1 than for 465 or 581 cm2 hen-1 (42.4°C and 42.2°C vs. 41.9°C and 42.1°C, respectively, P = 0.009). Bird body mass decreased as heat exposure duration increased (P < 0.0001), but no differences were observed among the treatments. No mortalities were observed during the thermoneutrality period, and the mortality rate increased with heat exposure duration. The results indicate that, while CBT was lower for lower SD, the increased space was not sufficient to offer a clear benefit for coping with heat challenge of 32°C followed by 35°C.

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Remote physiological monitoring of livestock - An implantable radio-telemetry system.

Cited by 8 publications

References 0 publications

Validation of an intramuscularly-implanted microchip and a surface infrared thermometer to estimate core body temperature in broiler chickens exposed to heat stress

Validation of an intramuscularly-implanted microchip and a surface infrared thermometer to estimate core body temperature in broiler chickens exposed to heat stress

Assessment of an Injectable RFID Temperature Sensor for Indication of Horse Well-Being

Effects of Stocking Density and Group Size on Thermoregulatory Responses of Laying Hens under Heat Challenging Conditions

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