The use of temperature-humidity index (thi) to evaluate temperature-humidity conditions in freestall barns
نویسندگان
چکیده
منابع مشابه
Effect of Genetic Group, Season, Their Interaction, Temperature, Humidity and Temperature-Humidity Index on Maintenance Behavior of Stud Bulls
Stud bull plays an important role in the development of animal husbandry. Detailed knowledge about maintenance behavior of stud bulls is essential for practicing better management conditions in the farm to support the artificial insemination (AI) industry demand. Therefore, a comparative study was conducted on stud bulls to evaluate the effect of genetic group, season, genetic group × season in...
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The temperature humidity index (THI) was originally developed for humans by Thom (1958) and extended to cattle by Berry et al (1964). It is currently used to estimate cooling requirements of dairy cattle in order to improve the efficiency of management strategies to alleviate heat stress. The Livestock Conservation Institute evaluated the biological responses to varying THI values and categoriz...
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Calving records from April 1996 to December 2005 comprising 31863 calving events of 1173 dairy cows in a large commercial dairy herd were used to evaluate the effects of heat stress, using temperature-humidity index (THI) on milk yield and composition and reproductive performance of Holstein dairy cows under humid climatic conditions of Rasht in Iran. THI values were grouped into six groups: 30...
متن کاملdetermination of climate critical periods in management of dairy cows in northeast of iran using temperature humidity index (thi)
this study was carried out to investigate the possibility of prediction the occurrence of heat stress in dairy cows and determination of climate critical periods. the most common indexes for estimation the degree of thermal stress istemperature humidity index (thi). in this study yousef’s thi index (1985)was used to analyze the yearly and monthly effects of temperature and humidity. meteorologi...
متن کاملAssessing Architectural Design Due to Climatic Factors (Compare the Effect of Temperature and Humidity)
Undoubtly it can be said that climate and how weather conditions effect on building shape including limited architecture elements which has been noticed at the beginning of making shelter by human beings and the principle of this need has not been changed by passing time and changing the styles and movements and definitions of art and beauty and changing needs and attitudes and expanding archit...
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ژورنال
عنوان ژورنال: Journal of Central European Agriculture
سال: 2014
ISSN: 1332-9049
DOI: 10.5513/jcea01/15.2.1455