Reusable biotelemetric capsules: A convenient and reliable method for measuring core body temperature in large mammals during gut passage

Weissenböck, Nicole M.; Schober, Franz; Fluch, Gerhard; Weiss, Christoph; Paumann, Thomas; Schwarz, Christian; Arnold, Walter

doi:10.1016/j.jtherbio.2010.02.001

Cited by 5 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A GI pill has been evaluated and used for continuous monitoring of thermoregulation in human athletes during field and exercise studies. [14][15][16][17][18][19][20][21][22][23][24][25] In addition, GI pills have been tested in resting and exercising dogs, 26 elephants, 27 cattle, 28 and horses (while at rest 29 and during transportation 30 ).…”

Section: CImentioning

confidence: 99%

Evaluation of a telemetric gastrointestinal pill for continuous monitoring of gastrointestinal temperature in horses at rest and during exercise

Verdegaal¹,

Delesalle²,

Caraguel³

et al. 2017

ajvr

View full text Add to dashboard Cite

OBJECTIVE To evaluate use of a telemetric gastrointestinal (GI) pill to continuously monitor GI temperature in horses at rest and during exercise and to compare time profiles of GI temperature and rectal temperature. ANIMALS 8 Standardbred horses. PROCEDURES Accuracy and precision of the GI pill and a rectal probe were determined in vitro by comparing temperature measurements with values obtained by a certified resistance temperature detector (RTD) in water baths at various temperatures (37°, 39°, and 41°C). Subsequently, both GI and rectal temperature were recorded in vivo in 8 horses over 3 consecutive days. The GI temperature was recorded continuously, and rectal temperature was recorded for 3.5 hours daily. Comparisons were made between GI temperature and rectal temperature for horses at rest, during exercise, and after exercise. RESULTS Water bath evaluation revealed good agreement between the rectal probe and RTD. However, the GI pill systematically underestimated temperature by 0.14°C. In vivo, GI temperature data were captured with minimal difficulties. Most data loss occurred during the first 16 hours, after which the mean ± SD data loss was 8.6 ± 3.7%. The GI temperature was consistently and significantly higher than rectal temperature with an overall mean temperature difference across time of 0.27°C (range, 0.22° to 0.32°C). Mean measurement cessation point for the GI pill was 5.1 ± 1.0 days after administration. CONCLUSIONS AND CLINICAL RELEVANCE This study revealed that the telemetric GI pill was a reliable and practical method for real-time monitoring of GI temperature in horses.

show abstract

Section: CImentioning

confidence: 99%

Evaluation of a telemetric gastrointestinal pill for continuous monitoring of gastrointestinal temperature in horses at rest and during exercise

Verdegaal¹,

Delesalle²,

Caraguel³

et al. 2017

ajvr

View full text Add to dashboard Cite

show abstract

“…These devices record temperature during passage through the gastrointestinal tract and have been used widely on relatively large species and in humans [10,63,64]. Recording duration is determined by gut passage rate, which may vary from hours to weeks but in large ruminants devices have been retained for up to 4 years (retention time was actually improved by increasing the size of the device) [56].…”

Section: Gastrointestinal Devicesmentioning

confidence: 99%

“…Radio-telemetry pills have the advantage that temperature can be recorded externally and do not require recovery of the pill. Systems that provide a combination of radio-telemetry and data logger output have been custom built for this purpose [56,64]. By far the greatest application of gastrointestinal sensors in wild species has been to detect feeding events in marine endotherms, to which these devices are especially appropriate as the stomach temperature of these animals drops temporarily during the ingestion of cooler ectothermic prey [65][66][67].…”

Section: Gastrointestinal Devicesmentioning

confidence: 99%

Challenges of measuring body temperatures of free-ranging birds and mammals

2015

View full text Add to dashboard Cite

The thermal physiology of most birds and mammals is characterised by considerable spatial and temporal variation in body temperature. Body temperature is, therefore, a key parameter in physiological, behavioural and ecological research. Temperature measurements on freely moving or free-ranging animals in the wild are challenging but can be undertaken using a range of techniques. Internal temperature may be sampled using thermometry, surgically implanted loggers or transmitters, gastrointestinal or non-surgically placed devices. Less invasive approaches measure peripheral temperature with subcutaneous passive integrated transponder tags or skin surface-mounted radio transmitters and data loggers, or use infrared thermography to record surface temperature. Choice of technique is determined by focal research question and region of interest that reflects appropriate physiological or behavioural causal mechanisms of temperature change, as well as welfare and logistical considerations. Particularly required are further studies that provide opportunities of continuously sampling from multiple sites from within the body. This will increase our understanding of thermoregulation and temperature variation in different parts of the body and how these temperatures may change in response to physiological, behavioural and environmental parameters. Technological advances that continue to reduce the size and remote sensing capability of temperature recorders will greatly benefit field research.

show abstract

“…Swallowable biotelemetry devices have been applied in ruminants, as the unit would remain in the rumino-reticular tract [ 17 ]. It is possible to feed a small measuring device to an elephant, while it could be excreted through the gut soon [ 18 , 19 ]. Similar techniques can be applied in further elephant HR studies, which can also record HR in a longer time scale.…”

Section: Discussionmentioning

confidence: 99%

Heart rate patterns of captive Asian elephant (Elephas maximus) in their natural habitat at Wild Elephant Valley, Xishuangbanna of China

Zhou,

Bao,

Guo

et al. 2024

Heliyon

View full text Add to dashboard Cite

Reusable biotelemetric capsules: A convenient and reliable method for measuring core body temperature in large mammals during gut passage

Cited by 5 publications

References 10 publications

Evaluation of a telemetric gastrointestinal pill for continuous monitoring of gastrointestinal temperature in horses at rest and during exercise

Evaluation of a telemetric gastrointestinal pill for continuous monitoring of gastrointestinal temperature in horses at rest and during exercise

Challenges of measuring body temperatures of free-ranging birds and mammals

Heart rate patterns of captive Asian elephant (Elephas maximus) in their natural habitat at Wild Elephant Valley, Xishuangbanna of China

Contact Info

Product

Resources

About