CamNtech Research Library

CamNtech products have been trusted by specialist researchers for over 25 years.

Our research library contains peer reviewed publications citing the use of our devices.

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Found 13 Results

The activity patterns of nonworking and working sled dogs

There are limited studies investigating the combined effects of biological, environmental, and human factors on the activity of the domestic dog. Sled dogs offer a unique opportunity to examine these factors due to their close relationship with handlers and exposure to the outdoors. Here, we used accelerometers to measure the activity of 52 sled dogs […]

Related Product: MotionWatch

Publication Date: May 14, 2022

Eulerian videography technology improves classification of sleep architecture in primates

Sleep is a critically important dimension of primate behavior, ecology, and evolution, yet primate sleep is under-studied because current methods of analyzing sleep are expensive, invasive, and time-consuming. In contrast to electroencephalography (EEG) and actigraphy, videography is a cost-effective and non-invasive method to study sleep architecture in animals. With video data, however, it is challenging […]

Related Product: MotionWatch

Publication Date: August 27, 2019

Differences in dietary niche and foraging behavior of sympatric mule and white‐tailed deer

Mule (Odocoileus hemionus) and white‐tailed deer (Odocoileus virginianus) are congeneric and share similar life histories, yet their distribution is segregated across much of North America. Extensive research on both species within and outside their zone of co‐occurrence has not fully explained these distribution patterns, especially the potential role of diet and foraging behavior. Therefore, we […]

Related Product: MotionWatch

Publication Date: July 23, 2019

Sleep influences cognitive performance in lemurs

Primates spend almost half their lives asleep, yet little is known about how sleep influences their waking cognition. We hypothesized that diurnal and cathemeral lemurs differ in their need for consistent, non-segmented sleep for next-day cognitive function—including long-term memory consolidation, self-control, foraging efficiency, and sociality. Specifically, we expected that strictly diurnal Propithecus is more reliant […]

Related Product: MotionWatch

Publication Date: May 1, 2019

Chronobiology of voluntary food intake in reindeer (Rangifer tarandus tarandus)

n all organisms, biological rhythms arise from the interaction between endogenous clocks and a rhythmic environment. The timing of sunrise and sunset synchronize internal timing processes and inform the organism not only of the time of day, but also of the time of year. For animals living in polar regions biological timekeeping represents a challenge, […]

Related Product: MotionWatch

Publication Date: November 15, 2018

The cost of deep sleep: Environmental influences on sleep regulation are greater for diurnal lemurs

Objectives Primates spend almost half their lives asleep, yet we know little about how evolution has shaped variation in the duration or intensity of sleep (i.e., sleep regulation) across primate species. Our objective was to test hypotheses related to how sleeping site security influences sleep intensity in different lemur species. Methods We used actigraphy and […]

Related Product: MotionWatch

Publication Date: July 10, 2018

The quest for welfare-friendly feeding of broiler breeders: effects of daily vs. 5: 2 feed restriction schedules

Restricted feeding of broiler breeders is required for improved long-term health and welfare. Because feeding frustration and hunger are major welfare concerns during rearing, many suggestions have been made to decrease the negative feelings of hunger while maintaining suitable growth rates and reproductive health. Non-daily (“skip-a-day”) feeding schedules are commonly used around the world to […]

Related Product: MotionWatch

Publication Date: December 7, 2017

Activity patterns in seven captive lemur species: Evidence of cathemerality in Varecia and Lemur catta?

Cathemerality, or activity throughout the 24‐hr cycle, is rare in primates yet relatively common among lemurs. However, the diverse ecological conditions under which cathemerality is expressed complicates attempts to identify species‐typical behavior. For example, Lemur catta and Varecia have historically been described as diurnal, yet recent studies suggest that they might exhibit cathemeral behavior under […]

Related Product: MotionWatch

Publication Date: March 3, 2017

Eye and ear temperature using infrared thermography are related to rectal temperature in dogs at rest or with exercise

Rectal body temperature (BT) has been documented in exercising dogs to monitor thermoregulation, heat stress risk, and performance during physical activity. Eye (BTeye) and ear (BTear) temperature measured with infrared thermography (IRT) were compared to rectal (BTrec) temperature as the reference method and assess alternative sites to track hyperthermia, possibly to establish BTeye IRT as […]

Related Product: MotionWatch

Publication Date: December 19, 2016

VX toxicity in the Göttingen minipig.

The present experiments determined the intramuscular LD50 of VX in male Göttingen minipigs at two stages of development. In pubertal animals (115 days old), the LD50 of VX was indeterminate, but approximated 33.3 μg/kg. However, in sexually mature animals (152 days old), the LD50 was estimated to be only 17.4 μg/kg. Signs of nerve agent toxicity in […]

Related Product: MotionWatch

Publication Date: December 15, 2016

Higher fear of predators does not decrease outdoor range use in free-range Rowan Ranger broiler chickens

Organic chicken production is currently experiencing a boom in Sweden, but has only recently gained access to a commercial slow-growing broiler strain, the Rowan Ranger. While these chickens are reported to grow at rates better suited to organic production than previously available strains, anecdotal evidence suggested increased fearfulness in this strain and concerns were raised […]

Related Product: MotionWatch

Publication Date: June 23, 2016

The Rowan Ranger Chicken Breed-a Suitable Alternative for the Organic Chicken Meat Industry

The only available broiler strain to use in organic chicken meat production, until recently, has been conventional fast growing broiler hybrids. The Rowan Ranger is a broiler strain that has a naturally slower growth rate which makes this strain suitable for organic farming, meeting the demands of KRAV without being subjected to a feed restriction. […]

Related Product: MotionWatch

Publication Date: June 14, 2016

Physiological stress and behavioural differences in broiler breeder hens subjected to daily and 5: 2 feed restriction regimens

Feed restriction in the parental stock of meat producing chickens, broiler breeders, is essential in order to decrease the high growth rate that they are genetically selected for. The feed restriction does however lead to chronic hunger and stress. Stress can be measured by counting H/L ratios and the method of manually counting H/L ratios […]

Related Product: MotionWatch

Publication Date: June 9, 2016

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