Bulletin of the Veterinary Institute in Pulawy · 2014 · 96 citations · 10 references
Life SciencesAnimal SciencesPhysiologyAnimal PhysiologyEnvironmental PhysiologyStress PhysiologyAir Temperature EffectsAnimal Environmental PhysiologyHeat StressHeat Stress PhysiologySheep PhysiologyThermal PhysiologyEndocrine Responses To Heat StressHeart RateHeat Stress ExposureHeat Stress ResponsesPhysiological Responses To Heat StressRespiratory RateSalivary CortisolThermal Stress Physiology
Abstract Fifteen sheep where placed in climatic chamber and exposed to a high temperature (30°C). Then, the air movement was induced in order to examine its soothing effect on heat stress. The physiological reactions like respiratory and heart rates, as well as the morphologic, biochemical parameters and cortisol levels in blood were examined. It was found that under heat stress conditions, the respiratory rate increased up to 96.43 breaths/min, heart rate up to 107.79 beats/min, and white blood cells count decreased to 9.12 k/μL. The increased level of potassium, chlorine, and calcium was also observed. The increased air movement resulted in thermal stress soothing. A decrease in respiratory rate, heart rate, and cortisol concentration was observed. The study demonstrated that heat stress leads to serious changes in physiological and blood parameters in sheep but this effect can be minimised by air movement.
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Animal Physiology: Adaptation and environment
Glenn K. Baggott · Journal of Arid Environments · 1985 · 1.1K citations
Life Sciences, Biology, Physiology +12
Physiological traits as affected by heat stress in sheep—A review
Ibrahim Marai, A. A. El-Darawany, Ahmed Fadiel et al. · Small Ruminant Research · 2006 · 981 citations