Thermographic ocular temperature correlated with rectal temperature in cats

Giannetto, Claudia; Pietro, Simona Di; Falcone, Annastella; Pennisi, M. G.; Giudice, Elisabetta; Piccione, Giuseppe; Acri, Giuseppe

doi:10.1016/j.jtherbio.2021.103104

Cited by 22 publications

(17 citation statements)

References 23 publications

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“…Therefore, our results demonstrated an association between increased body temperatures and IOP variations during exercise [ 33 ]. OT has been observed to be significantly related to rectal temperature, confirming that both measurements may be carried out to detect hyperthermic changes during physical exercise in horses [ 27 , 34 ].…”

Section: Discussionmentioning

confidence: 90%

“…All horses were fed three times a day (06:00, 12:00 and 20:00) with a diet based on good-quality hay and a mixed cereal concentrate, whereas water was available ad libitum. Environmental parameters were monitored during the experimental period using a multiparametric probe (Testo 400 Testo SE & Co. KGaA, Titisee-Neustadt, Germany), as micro-climatic conditions (ambient temperature, relative humidity and ventilation) may influence infrared thermography [ 27 ].…”

Section: Methodsmentioning

confidence: 99%

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Correlation between Ocular and Rectal Temperature with Intra Ocular Pressure in Horse during Exercise

Aragona

Pietro

Arfuso

et al. 2022

Animals

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The aim of the present study was to investigate the response to physical exercise of some ocular physiological variables (ocular temperature and intraocular pressure) in horses performing a jumping course in the morning (a.m.) or in the afternoon hours (p.m.), before and after the exercise, in correlation with the rectal temperature. Data collection was carried out on 14 clinical healthy Italian saddle horses. All horses were trained from 9:00 to 10:00 a.m. and from 19:00 to 20:00 p.m. according to a specific training program. Ocular temperature (OT), rectal temperature (RT) and intraocular pressure (IOP) were determined. Statistical analysis showed no differences between the results for the left and the right eyes. The application of two-way repeated-measures analysis of variance (ANOVA) showed a statistically significant effect of time (before vs. after) on IOP (p = 0.0001). RT and OT were statistically influenced by time of day and by experimental conditions (a.m. vs. p.m.) (p = 0.0001). Bland–Altman (B-A) testing showed an agreement between the values of RT and OT. Our results showed a correlation between increased body temperatures and IOP variations during exercise, so they can probably be considered indicators of athletic horses’ physical fitness during exercise.

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Section: Discussionmentioning

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Correlation between Ocular and Rectal Temperature with Intra Ocular Pressure in Horse during Exercise

Aragona

Pietro

Arfuso

et al. 2022

Animals

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“…To date, the ocular, auricular, and nasal regions are most often employed to quantify the heat that animals dissipate or conserve ( 17 , 20 , 21 ). In species like swine and canines, appendicular regions are recognized as being more sensitive to temperature decreases due to prominent blood vessels that contract to prevent active heat loss ( 7 , 22 ).…”

Section: Introductionmentioning

confidence: 99%

Thermoregulation mechanisms and perspectives for validating thermal windows in pigs with hypothermia and hyperthermia: An overview

et al. 2022

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Specific anatomical characteristics make the porcine species especially sensitive to extreme temperature changes, predisposing them to pathologies and even death due to thermal stress. Interest in improving animal welfare and porcine productivity has led to the development of various lines of research that seek to understand the effect of certain environmental conditions on productivity and the impact of implementing strategies designed to mitigate adverse effects. The non-invasive infrared thermography technique is one of the tools most widely used to carry out these studies, based on detecting changes in microcirculation. However, evaluations using this tool require reliable thermal windows; this can be challenging because several factors can affect the sensitivity and specificity of the regions selected. This review discusses the thermal windows used with domestic pigs and the association of thermal changes in these regions with the thermoregulatory capacity of piglets and hogs.

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“…Thermoregulatory adjustments can be induced by changes in environmental temperature and numerous physiological factors including age, fasting and food intake, stressful circumstances, and inflammation status, which can cause changes in internal temperature that result in variations in body surface temperature. The evaluation of surface temperature using infrared thermography—a non-invasive technique that captures images of a specific body region at a distance—represents a valuable tool for monitoring the animals’ physiological status, welfare, and stress responses [ 6 , 7 ]. The reactions of animals under stressful conditions primarily involve activating the sympathetic system and hypothalamic–hypophysis–adrenal axis (HPA) through the release of effector hormones, such as catecholamines, and glucocorticoid production, respectively.…”

Section: Introductionmentioning

confidence: 99%

Thermal Imaging to Assess the Health Status in Wildlife Animals under Human Care: Limitations and Perspectives

Mota-Rojas

Pereira

Martı́nez-Burnes

et al. 2022

Animals

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Promoting animal welfare in wildlife species under human care requires the implementation of techniques for continuously monitoring their health. Infrared thermography is a non-invasive tool that uses the radiation emitted from the skin of animals to assess their thermal state. However, there are no established thermal windows in wildlife species because factors such as the thickness or color of the skin, type/length of coat, or presence of fur can influence the readings taken to obtain objective, sensitive values. Therefore, this review aims to discuss the usefulness and application of the ocular, nasal, thoracic, abdominal, and podal anatomical regions as thermal windows for evaluating zoo animals' thermal response and health status. A literature search of the Web of Science, Science Direct, and PubMed databases was performed to identify relevant studies that used IRT with wild species as a complementary diagnostic tool. Implementing IRT in zoos or conservation centers could also serve as a method for determining and monitoring optimal habitat designs to meet the needs of specific animals. In addition, we analyze the limitations of using IRT with various wildlife species under human care to understand better the differences among animals and the factors that must be considered when using infrared thermography.

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Thermographic ocular temperature correlated with rectal temperature in cats

Cited by 22 publications

References 23 publications

Correlation between Ocular and Rectal Temperature with Intra Ocular Pressure in Horse during Exercise

Correlation between Ocular and Rectal Temperature with Intra Ocular Pressure in Horse during Exercise

Thermoregulation mechanisms and perspectives for validating thermal windows in pigs with hypothermia and hyperthermia: An overview

Thermal Imaging to Assess the Health Status in Wildlife Animals under Human Care: Limitations and Perspectives

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