Effects of age on histological parameters of the sweat glands of Nellore cattle

Regina, Mara; Nascimento, Bueno de Mattos; Dias, Enéias Aurélio; Santos, Tiago; Ayres, Gustavo Ferreira

doi:10.1590/0034-737x201562020001

Cited by 3 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The secretory capacity of sweat glands may be related to the age of the animal 42 . The scent-sampled yearling male appeared matching adult females in its chemical profile.…”

Section: Discussionmentioning

confidence: 99%

Histological, chemical and behavioural evidence of pedal communication in brown bears

Sergiel

Naves

Kujawski

et al. 2017

Sci Rep

View full text Add to dashboard Cite

Most mammals rely upon scent for intraspecific communication. As most bear species have large home ranges and are non-territorial, scent deposit while walking could be an effective way to communicate with conspecifics. Here, we investigate the existence of pedal glands in brown bears and their role in chemical communication from a histological, biochemical and behavioural perspective. We found eccrine glands in footpads, and prominent apocrine and sebaceous glands in the interdigital, metacarpal and metatarsal skin sections. Pedal scent contained 26 compounds including carboxylic acids, important constituents of mammalian secretions. Six of these compounds were exclusive for males. Finally, we describe a specific marking gait recorded in the field, mostly performed by males. Our study supports the existence of chemical communication through pedal marking in brown bears and suggests sex-coding potential of pedal scent.

show abstract

“…The secretory capacity of sweat glands may be related to the age of the animal 42 . The scent-sampled yearling male appeared matching adult females in its chemical profile.…”

Section: Discussionmentioning

confidence: 99%

Histological, chemical and behavioural evidence of pedal communication in brown bears

Sergiel

Naves

Kujawski

et al. 2017

Sci Rep

View full text Add to dashboard Cite

show abstract

Comparative histological study of skin in Jenubi and its crossbreed cow

Alsodany

Al-Derawi

Mraisel

2019

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The aim of this study was to comparative the histological structure of skin in Jenubi cow and its Friesians crossbreed cow. Samples of skin were collected from abdominal regions of Jenubi cow and its Friesians crossbreed cow immediately after slaughter in Governorate of Misan. The results showed similarities in the structure of the normal skin layers which was consists of three layers epidermis, dermis and hypodermis. Sweet glands was more distributed in the region between papillary and reticular layer and are associated with hair follicles. The primary hair follicle was associated with Sebaceous glands which were scattered in the deeper part of the reticular layer in both Jenubi and cross breed skin. The deference’s found in the micrometrical observations in the dermal layer, these variations between breeds in epithelium thickness of sweet glands where small in Jenubi cow while the epithelium thickness of crossbreed cow was more greater. The present study it was revealed that the sweat gland diameter in the skin of Jenubi cow was lower than in crossbreed cow. The conclusion of this study revealed that the location of the papillary layer is superficial and just under the basement membrane while the reticular layer composed the deeper layer in the dermis. The type of sebaceous gland was a simple, branched or compound. The epithelium thickness of sweet glands in crossbreed cow was more greater than Jenubi cow.

show abstract

Pathophysiology of Fever and Application of Infrared Thermography (IRT) in the Detection of Sick Domestic Animals: Recent Advances

Mota-Rojas

Wang

Titto

et al. 2021

Animals

View full text Add to dashboard Cite

Body-temperature elevations are multifactorial in origin and classified as hyperthermia as a rise in temperature due to alterations in the thermoregulation mechanism; the body loses the ability to control or regulate body temperature. In contrast, fever is a controlled state, since the body adjusts its stable temperature range to increase body temperature without losing the thermoregulation capacity. Fever refers to an acute phase response that confers a survival benefit on the body, raising core body temperature during infection or systemic inflammation processes to reduce the survival and proliferation of infectious pathogens by altering temperature, restriction of essential nutrients, and the activation of an immune reaction. However, once the infection resolves, the febrile response must be tightly regulated to avoid excessive tissue damage. During fever, neurological, endocrine, immunological, and metabolic changes occur that cause an increase in the stable temperature range, which allows the core body temperature to be considerably increased to stop the invasion of the offending agent and restrict the damage to the organism. There are different metabolic mechanisms of thermoregulation in the febrile response at the central and peripheral levels and cellular events. In response to cold or heat, the brain triggers thermoregulatory responses to coping with changes in body temperature, including autonomic effectors, such as thermogenesis, vasodilation, sweating, and behavioral mechanisms, that trigger flexible, goal-oriented actions, such as seeking heat or cold, nest building, and postural extension. Infrared thermography (IRT) has proven to be a reliable method for the early detection of pathologies affecting animal health and welfare that represent economic losses for farmers. However, the standardization of protocols for IRT use is still needed. Together with the complete understanding of the physiological and behavioral responses involved in the febrile process, it is possible to have timely solutions to serious problem situations. For this reason, the present review aims to analyze the new findings in pathophysiological mechanisms of the febrile process, the heat-loss mechanisms in an animal with fever, thermoregulation, the adverse effects of fever, and recent scientific findings related to different pathologies in farm animals through the use of IRT.

show abstract

Effects of age on histological parameters of the sweat glands of Nellore cattle

Cited by 3 publications

References 2 publications

Histological, chemical and behavioural evidence of pedal communication in brown bears

Histological, chemical and behavioural evidence of pedal communication in brown bears

Comparative histological study of skin in Jenubi and its crossbreed cow

Pathophysiology of Fever and Application of Infrared Thermography (IRT) in the Detection of Sick Domestic Animals: Recent Advances

Contact Info

Product

Resources

About