scholarly journals COMPARATIVE STUDIES ON SWEATING REFLEX, NUMBERS OF ACTIVE SWEAT GLAND AND BODY TEMPERATURE OF SUBTROPICAL NATIVES AND TEMPERATE NATIVES

1978 ◽  
Vol 6 (3-4) ◽  
pp. 157-165 ◽  
Author(s):  
JUNZO TSUJITA ◽  
SEIKI HORI
1970 ◽  
Vol 32 (3) ◽  
pp. 395-400 ◽  
Author(s):  
D. F. Roberts ◽  
F. M. Salzano ◽  
J. O. C. Willson

1996 ◽  
Vol 18 (1) ◽  
pp. 1-5
Author(s):  
Shouhei IMAMURA ◽  
Akio OHNISHI ◽  
Tatsunori YAMAMOTO ◽  
Joji NAGAKI ◽  
Masato IKEDA

1983 ◽  
Vol 15 (4) ◽  
pp. 573-581 ◽  
Author(s):  
D.McEwan Jenkinson ◽  
M.C. Nimmo ◽  
D. Jackson ◽  
L. McQueen ◽  
H.Y. Elder ◽  
...  

2015 ◽  
Vol 47 ◽  
pp. 496-497
Author(s):  
Jung-Hyun Kim ◽  
Young-Joon Jang ◽  
Travis DiLeo ◽  
Jeffrey Powell ◽  
Raymond Roberge ◽  
...  

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 51-51
Author(s):  
Raluca G Mateescu ◽  
Kaitlyn M Sarlo Davila ◽  
Serdal Dikmen ◽  
Andrea Nunez ◽  
Eduardo Rodriguez ◽  
...  

Abstract Bos taurus indicus cattle have superior ability for regulation of body temperature during heat stress due to a number of physiological and cellular level adaptive traits. The objectives of this study were to quantify the change in body temperature in heifers with various proportions of Brahman genes per unit increase in heat stress as measured by THI and to assess the impact of skin properties on the phenotypic plasticity. A total of 299 two-year old heifers from six breed groups ranging from 100% Angus to 100% Brahman were evaluated under hot and humid conditions during 2017 and 2018 summer days. The plasticity in body temperature of breed groups in response to environmental challenges was estimated using a random regression mixed model. Six mm skin biopsies were collected from the right side of sixth thoracic bone of each heifer. Cross-sections of biopsy samples with a thickness of 7 µm were stained with Hematoxilin–Eosin technique. The number and area of sweat and sebaceous glands and the thickness of dermis and epidermis were determined using the ImageJ program. The 100% Brahman group had the lowest intercept and slope (38.66 and 0.18) representing the body temperature under the low THI conditions and the increase in body temperature for 2 units of THI, respectively. Except for the 100% Angus group, which had a slightly higher intercept (38.68), all other breed groups had lower intercepts. Body temperature in the 100% Angus heifers increases by 0.42 for every 2 units of THI. There was a significant linear effect of Brahman percentage on the sweat gland size, with the 100% Brahman having the largest sweat gland size (203.57µm2) and purebred Angus the smallest (94.31µm2). Effective strategies will require the identification of the genes conferring the superior thermotolerance in Brahman cattle.


1977 ◽  
Vol 25 (3) ◽  
pp. 423 ◽  
Author(s):  
RV Baudinette

The gait patterns, rates of oxygen consumption, body temperature and sweat gland activity were examined in S. brachyurus during locomotion on a treadmill. At speeds up to 12.6 km h-1 the animal moved in a quadrupedal bound occasionally punctuated by six or seven hops. At the higher speeds within this range, stride frequency became relatively constant and increases in stride length were the primary determinants of increased speed. Rates of oxygen consumption increased linearly with speed of locomotion up to 7.6 km h-1; above this range the animals would not run for prolonged periods when wearing a gas collection mask. The gradient of this line was similar to that predicted for a eutherian of similar body mass, but the extrapolation to zero speed was much higher than found in other mammals. As the quokka increased speed, a greater proportion of the heat produced while running was stored. At 7.6 km h-1, this was 60% of the total production. Active sweat glands were demonstrated on the limbs and feet during locomotion.


1964 ◽  
Vol 19 (1) ◽  
pp. 137-141 ◽  
Author(s):  
Robert W. Bullard

Inhalation of 6% carbon dioxide by male subjects exposed to three different ambient temperatures resulted in increased sweating as measured by resistance hygrometry. The increase, which occurred in all body areas studied, reached approximately 100% over the control levels. All measured body temperatures decreased during or immediately following the carbon dioxide period. In the recovery period a marked depression of sweating occurred which ended as skin temperatures increased. body temperature; thermal effector activity (cyclic sweat gland activity); skin temperature; tympanic membrane and hypothalamus temperatures; resistance hygrometry responses to heat Submitted on April 24, 1963


Author(s):  
M. L. Zimny ◽  
A. C. Haller

During hibernation the ground squirrel is immobile, body temperature reduced and metabolism depressed. Hibernation has been shown to affect dental tissues varying degrees, although not much work has been done in this area. In limited studies, it has been shown that hibernation results in (1) mobilization of bone minerals; (2) deficient dentinogenesis and degeneration of alveolar bone; (3) presence of calculus and tears in the cementum; and (4) aggrevation of caries and pulpal and apical tooth abscesses. The purpose of this investigation was to study the effects of hibernation on dental tissues employing scanning electron microscopy (SEM) and related x-ray analyses.


1973 ◽  
Vol 107 (1) ◽  
pp. 94-96 ◽  
Author(s):  
G. Panet-Raymond

Sign in / Sign up

Export Citation Format

Share Document