Respiration Rate Predictive Equation and Effective Heat Stress Relief Ways for Hanwoo Steers
نویسندگان
چکیده
منابع مشابه
Regional differences in sweat rate response of steers to short-term heat stress.
Six Angus steers (319 +/- 8.5 kg) were assigned to one of two groups (hot or cold exposure) of three steers each, and placed into two environmental chambers initially maintained at 16.5-18.8 degrees C air temperature (Ta). Cold chamber Ta was lowered to 8.4 degrees C, while Ta within the hot chamber was increased to 32.7 degrees C over a 24-h time period. Measurements included respiration rate,...
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Factors were analyzed that limit the range of environmental conditions in which stress from heat may be relieved by evaporative cooling in shaded animals. Evaporative cooling reduces air temperature (Ta), but increases humidity. Equations were developed to predict Ta reduction as a function of ambient temperature and humidity and of humidity in cooled air. Predictions indicated that a reduction...
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ژورنال
عنوان ژورنال: Journal of the Faculty of Agriculture, Kyushu University
سال: 2012
ISSN: 0023-6152
DOI: 10.5109/22066