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wen shi zhi shu dui he si tan nai niu chan nai liang he shou tai lv ying xiang de yan jiu
Author(s): 
Pages: 82-84
Year: Issue:  8
Journal: Heilongjiang Animal Science and Veterinary Medicine

Abstract:  温湿指数(THI)是用来反映气温和气湿对奶牛热交换影响的一种指标,是气温和气湿相结合以估计炎热程度的一种温热状况综合评定指标.据报道,奶牛适宜的泌乳温度为4.4~21.1℃[1],适宜湿度为50%~70%[2],当环境温度超过25℃、THI大于70时奶牛处于热应激状态[3].在家畜生态学与生物气象学研究中,温湿指数被认为是描述家畜温热环境的较好指标,同时也可用来作为判断家畜耐热性能的标准[4].
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