scholarly journals Physiological responses of 3 chicken breeds to acute heat stress

2011 ◽  
Vol 90 (7) ◽  
pp. 1435-1440 ◽  
Author(s):  
A.F. Soleimani ◽  
I. Zulkifli ◽  
A.R. Omar ◽  
A.R. Raha
Keyword(s):  
Heat Stress ◽  
Physiological Responses ◽  
Acute Heat Stress ◽  
Chicken Breeds

Behavioural and physiological responses of three chicken breeds to pre-slaughter shackling and acute heat stress

2005 ◽  
Vol 46 (5) ◽  
pp. 527-535 ◽  
Author(s):  
M. Debut ◽  
C. Berri ◽  
C. Arnould ◽  
D. Guemené ◽  
V. Santé-Lhoutellier ◽  
...  
Keyword(s):  
Heat Stress ◽  
Physiological Responses ◽  
Acute Heat Stress ◽  
Chicken Breeds

Repeated thermal conditioning during the neonatal period affects behavioral and physiological responses to acute heat stress in chicks

2020 ◽  
Vol 94 ◽  
pp. 102759
Author(s):  
Yoshimitsu Ouchi ◽  
Hiroshi Tanizawa ◽  
Jun-ichi Shiraishi ◽  
John F. Cockrem ◽  
Vishwajit S. Chowdhury ◽  
...  
Keyword(s):  
Heat Stress ◽  
Neonatal Period ◽  
Physiological Responses ◽  
Acute Heat Stress

scholarly journals Evaluation of physiological and molecular responses to acute heat stress in two chicken breeds

animal ◽  
2020 ◽  
pp. 100106
Author(s):  
P. Adu-Asiamah ◽  
Y. Zhang ◽  
K. Amoah ◽  
Q.Y. Leng ◽  
J.H. Zheng ◽  
...  
Keyword(s):  
Heat Stress ◽  
Molecular Responses ◽  
Acute Heat Stress ◽  
Chicken Breeds

scholarly journals Effects of Short-term Acute Heat Stress on Physiological Responses and Heat Shock Proteins of Hanwoo Steer (Korean Cattle)

2019 ◽  
Vol 34 (3) ◽  
pp. 173-182
Author(s):  
Youl-Chang Baek ◽  
Minseok Kim ◽  
Jin-Young Jeong ◽  
Young-Kyoon Oh ◽  
Sung-Dae Lee ◽  
...  
Keyword(s):  
Heat Stress ◽  
Heat Shock ◽  
Heat Shock Proteins ◽  
Physiological Responses ◽  
Short Term ◽  
Korean Cattle ◽  
Acute Heat Stress ◽  
Shock Proteins

scholarly journals 216 Thermoregulatory and physiological responses of sows at different reproductive stages exposed to increasing ambient temperature

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 7-7
Author(s):  
Betty R McConn ◽  
Alan W Duttlinger ◽  
Kouassi R Kpodo ◽  
Jacob M Maskal ◽  
Brianna N Gaskill ◽  
...  
Keyword(s):  
Heat Stress ◽  
Ambient Temperature ◽  
Physiological Responses ◽  
Blood Gases ◽  
Respiratory Alkalosis ◽  
Stress Sensitivity ◽  
Late Gestation ◽  
Acid Base Balance ◽  
Study Objective ◽  
Cell Counts

Abstract Pregnant sows, especially during late-gestation, may be susceptible to heat stress due to increased metabolic heat production and body mass. Therefore, the study objective was to determine the thermoregulatory and physiological responses of sows exposed to increasing ambient temperature (TA) at 3 reproductive stages. In 3 repetitions, 27 multiparous sows (parity 3.22±0.89) were individually housed and had jugular catheters placed 5.0±1.0 d prior to the experiment. To differentiate between reproductive stages, sows were categorized as open (not pregnant, n=9), mid-gestation (59.7±9.6 days pregnant, n=9), or late-gestation (99.0±4.8 days pregnant, n=9). During the experiment, sows were exposed to 6 consecutive 1 h periods of increasing TA (period 1, 14.39±2.14°C; period 2, 16.20±1.39°C; period 3, 22.09±1.87°C; period 4, 26.34±1.39°C; period 5, 30.56±0.81°C; period 6, 35.07±0.96°C), with 1 h transition phases in between each period. Respiration rate (RR), heart rate (HR), skin temperature, and vaginal temperature (TV) were measured every 20 min and the mean was calculated for each period. At the end of each period, blood gases, leukocytes, and red blood cell counts were measured. Overall, RR and HR were greater (P≤0.04; 45.6% and 12.9%, respectively) in late-gestation versus mid-gestation sows. Compared to mid-gestation and open sows, TV tended to be greater (P=0.06) during period 4 (0.18°C and 0.29°C, respectively) and period 5 (0.14°C and 0.18°C, respectively) in late-gestation sows. Blood O2 increased (P< 0.01; 18.1%) for all sows with advancing period, regardless of reproductive stage. Late-gestation sows had reduced (P=0.02; 16.1%) blood CO2 compared to mid-gestation sows, regardless of period. In summary, late-gestation sows appear to be more sensitive to increasing TA as indicated by increased RR, HR, TV, and blood O2, and reduced blood CO2 when compared to mid-gestation or open sows. This change in O2 and CO2, due to increasing RR and heat stress sensitivity of late-gestation sows, may suggest an alteration to the acid-base balance, leading to respiratory alkalosis.

scholarly journals Dynamic Responses to Acute Heat Stress between 34 °C and 38.5 °C, and Characteristics of Heat Stress Response in Mice

2003 ◽  
Vol 26 (5) ◽  
pp. 701-708 ◽  
Author(s):  
Naoki Harikai ◽  
Kanji Tomogane ◽  
Mitsue Miyamoto ◽  
Keiko Shimada ◽  
Satoshi Onodera ◽  
...  
Keyword(s):  
Heat Stress ◽  
Stress Response ◽  
Dynamic Responses ◽  
Heat Stress Response ◽  
Acute Heat Stress
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