Effects of physiological stage and season on infrared thermograms of different body areas of dairy cows raised under tropical conditions

Deak, F. L. G. B.; Chacur, Marcelo George Mungai; Souza, Camila Dutra de; Andrade, Isamara Batata; Cornacini, Gabriela Figueredo; Garcia, Alexandre Rossetto; Gabriel, Luís R. A.

doi:10.21451/1984-3143-ar2017-0023

Cited by 12 publications

(11 citation statements)

References 21 publications

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“…In contrast, observe that in the rear quarters these areas cover 60% of the surface and 80% of the rear teats. The presence of higher temperatures in the caudal area of the mammary quarters coincides with observations in dairy bovines raised under tropical conditions (Deak et al 2019).…”

Section: Figuresupporting

confidence: 85%

“…It is also important to consider that, at least in cattle, the surface temperature of the caudal region of the udder by IRT may differ on occasions, and generally be higher (by 0.2-0.9 °C) than lateral readings. Finally, the temperature of the lateral udder can vary significantly depending on the season of the year and the reproductive stage (Deak et al 2019).…”

Section: Health Of the Udder Of Dairy Buffaloesmentioning

confidence: 99%

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Scientific findings related to changes in vascular microcirculation using infrared thermography in the river buffalo

Bertoni

Mota-Rojas

Macías

et al. 2020

JABB

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The objective of this review article is to discuss and analyze the most important scientific findings from studies of vascular microcirculation in the river buffalo using infrared thermography (IRT), as well as the thermal windows utilized with this species. The goals are to define the scope and areas of opportunity for IRT use in evaluating physiological processes and identifying potential applications in reproductive events associated with andrological traits in males and the detection of estrus and udder health in females. IRT has allowed the development of diverse perspectives regarding the comparative physiology of events like thermogenesis, peripheral blood flow, respiratory physiology, and mechanisms that reduce body temperature. The case of the river buffalo is no exception. According to the information analyzed, the temperatures of the orbital area, muzzle, and vulva have proven efficient for evaluating thermal comfort, a particularly important aspect of this species given its limited thermoregulating capacity and constant exposure to extreme temperatures. Evaluating scrotal temperature has been revealed as an appropriate tool for evaluating semen quality, while the surface temperature of the udder is useful in assessing mammary development in female buffaloes, two aspects of great zootechnical importance. In future studies, IRT will play a fundamental role in enhancing our understanding of the river buffalo's mechanisms of vascular microcirculation, with applications in productivity and behavior.

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Section: Figuresupporting

confidence: 85%

Section: Health Of the Udder Of Dairy Buffaloesmentioning

confidence: 99%

Scientific findings related to changes in vascular microcirculation using infrared thermography in the river buffalo

Bertoni

Mota-Rojas

Macías

et al. 2020

JABB

View full text Add to dashboard Cite

show abstract

“…The above brings us back to discussing the possible influence of environmental conditions and the season when birthing occurs. A study by Deak et al ( 117 ) reported the effect of season and the physiological state of several body areas in 24 Holstein cows evaluated in the rainy (October- March) and dry seasons (April- September). They observed that temperatures in the flanks, perineal area, and lateral udder were 1.1°C higher in the rainy season than in the dry season and that temperatures of the udder, perineal, and rectal regions differed in the reproductive phase.…”

Section: Use Of Infrared Thermography In Assessing Hypothermia In New...mentioning

confidence: 99%

Neonatal infrared thermography images in the hypothermic ruminant model: Anatomical-morphological-physiological aspects and mechanisms for thermoregulation

et al. 2022

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Hypothermia is one factor associated with mortality in newborn ruminants due to the drastic temperature change upon exposure to the extrauterine environment in the first hours after birth. Ruminants are precocial whose mechanisms for generating heat or preventing heat loss involve genetic characteristics, the degree of neurodevelopment at birth and environmental aspects. These elements combine to form a more efficient mechanism than those found in altricial species. Although the degree of neurodevelopment is an important advantage for these species, their greater mobility helps them to search for the udder and consume colostrum after birth. However, anatomical differences such as the distribution of adipose tissue or the presence of type II muscle fibers could lead to the understanding that these species use their energy resources more efficiently for heat production. The introduction of unconventional ruminant species, such as the water buffalo, has led to rethinking other characteristics like the skin thickness or the coat type that could intervene in the thermoregulation capacity of the newborn. Implementing tools to analyze species-specific characteristics that help prevent a critical decline in temperature is deemed a fundamental strategy for avoiding the adverse effects of a compromised thermoregulatory function. Although thermography is a non-invasive method to assess superficial temperature in several non-human animal species, in newborn ruminants there is limited information about its application, making it necessary to discuss the usefulness of this tool. This review aims to analyze the effects of hypothermia in newborn ruminants, their thermoregulation mechanisms that compensate for this condition, and the application of infrared thermography (IRT) to identify cases with hypothermia.

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“…Of these regions, forehead temperature was shown to have the greatest correlation with rectal temperature ( r 2 = 0.35). In another study aimed at determining the most reliable body area for measurement of rectal temperature in pregnant and non-pregnant cows, the strongest correlation was found using the thorax ( r 2 = 0.377) with the udder and the eyeball showing slightly weaker correlations ( r 2 = 0.357 and r 2 = 0.316 respectively) ( 77 ). Thermogram temperature was also shown to differ between seasons and reproductive phases.…”

Section: Resultsmentioning

confidence: 99%

Thermography for disease detection in livestock: A scoping review

et al. 2022

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Infra-red thermography (IRT) offers potential opportunities as a tool for disease detection in livestock. Despite considerable research in this area, there are no common standards or protocols for managing IRT parameters in animal disease detection research. In this review, we investigate parameters that are essential to the progression of this tool and make recommendations for their use based on the literature found and the veterinary thermography guidelines from the American Academy of Thermology. We analyzed a defined set of 109 articles concerned with the use of IRT in livestock related to disease and from these articles, parameters for accurate IRT were identified and sorted into the fields of camera-, animal- or environment-related categories to assess the practices of each article in reporting parameters. This review demonstrates the inconsistencies in practice across peer-reviewed articles and reveals that some important parameters are completely unreported while others are incorrectly captured and/or under-represented in the literature. Further to this, our review highlights the lack of measured emissivity values for live animals in multiple species. We present guidelines for the standards of parameters that should be used and reported in future experiments and discuss potential opportunities and challenges associated with using IRT for disease detection in livestock.

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Effects of physiological stage and season on infrared thermograms of different body areas of dairy cows raised under tropical conditions

Cited by 12 publications

References 21 publications

Scientific findings related to changes in vascular microcirculation using infrared thermography in the river buffalo

Scientific findings related to changes in vascular microcirculation using infrared thermography in the river buffalo

Neonatal infrared thermography images in the hypothermic ruminant model: Anatomical-morphological-physiological aspects and mechanisms for thermoregulation

Thermography for disease detection in livestock: A scoping review

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