升温环境下肉鸡体温和呼吸频率对热中性区上限温度估测

杨语嫣,王雪洁,张敏红,冯京海

The Upper Limit Temperature of Thermoneutral Zone Estimated by the Changes of Temperature and Respiration Rate of the Broilers

YANG YuYan,WANG XueJie,ZHANG MinHong,FENG JingHai

图4 连续升温环境下肉鸡呼吸频率开始升高时的环境温度（拐点温度,IPTRR）及其变异 a：第1天测试;b：第2天测试;c：第3天测试;d：个体之间和3 d测试结果之间的变异。筛除不合理数据后,第1天剩8只鸡的数据,第2天剩1只鸡的数据,第3天剩5只鸡的数据

Fig. 4 The inflection point temperature (IPTRR, which is the certain ambient temperature above which the respiratory rate of broilers started to change) At first day (a), second day (b), and third day (c) and its variation between individuals or three days (d). The data of 8 chickens at the first day, 1 chicken at the second day, and 5 chickens at the third day were left after screening out the unreasonable data