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黄春梅,胡黎娅,杨盛昌,朱万龙,李晓婷,蔡金红,王政昆.2012.中缅树鼩体温、代谢率和蒸发失水日节律.动物学杂志,47(2):127-135.
中缅树鼩体温、代谢率和蒸发失水日节律
Circadian Rhythms of Body Temperature, Metabolic Rates and Evaporative Water Loss in Tupaia belangeri
投稿时间:2011-10-08  修订日期:2012-01-04
DOI:
中文关键词:  中缅树鼩  体温  代谢率  蒸发失水
英文关键词:Tupaia belangeri  Body temperature  Metabolic rates  Evaporative water loss
基金项目:国家自然科学基金项目(No.31071925),云南省教育厅科研基金项目(No.ZD2009007,2011J065),云南省应用基础研究计划项目(No.2011FZ082,2008ZC043M);
作者单位E-mail
黄春梅 云南师范大学生命科学学院 昆明 650500  
胡黎娅 云南昆明肿瘤医院检验科 昆明 650118  
杨盛昌 云南师范大学生命科学学院 昆明 650500  
朱万龙 云南师范大学生命科学学院 昆明 650500  
李晓婷 云南师范大学生命科学学院 昆明 650500  
蔡金红 云南师范大学生命科学学院 昆明 650500  
王政昆 云南师范大学生命科学学院 昆明 650500 wzk_930@yahoo.com.cn 
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中文摘要:
      为研究中缅树鼩(Tupaia belangeri)体温、代谢率和蒸发失水的日节律变化,采用植入式体温计测定了中缅树鼩24 h的体温,以及24 h中4个时间段(05:00~07:00时、11:00~13:00时、17:00~19:00时和23:00~01:00时)热中性区(30℃)的静止代谢率(RMR)、非颤抖性产热(NST)和蒸发失水(EWL)。结果显示,中缅树鼩的体温具有日节律变化,最高值和最低值分别出现在11:00时和03:00时,各为(39.45±0.26)℃和(36.34±0.24)℃;静止代谢率、非颤抖性产热和蒸发失水在4个时间段都有显著差异,表现出显著的日节律变化,代谢率在23:00~01:00时最大,O2含量为(2.58±0.04)ml/(g·h),在11:00~13:00时最小,O2含量为(2.28±0.09)ml/(g·h);非颤抖性产热在05:00~07:00时最大,O2含量为(3.08±0.14)ml/(g·h),在11:00~13:00最小,O2含量为(2.69±0.63)ml/(g·h);蒸发失水在17:00~19:00时最大,失水量为(3.60±0.31)mg/(g·h)。结果表明,体温的日节律变化主要与环境温度的日节律变化和下午出窝取食活动性增强有关;当夜晚环境温度相对较低的时候,通过增强静止代谢率和非颤抖性产热来增加产热,而白天环境温度相对较高的时候,通过增强蒸发失水散热来调节体温。
英文摘要:
      To study daily rhythms of body temperature, metabolic rates and evaporative water loss of Tupaia belangeri, we took measurements on body temperature (Tb) for 24 h by implanting thermometer into their body. We also measured rest metabolic rate (RMR), nonshivering thermogenesis (NST) and evaporative water loss (EWL) in 4 periods of 05:00-07:00, 11:00-13:00, 17:00-19:00 and 23:00-01:00 within 24 h. The body temperature showed a change in circadian rhythm with a maximum and minimum value of 39.45±0.26℃ and 36.34±0.24℃ at 11:00 and 03:00, respectively. The value of NST, RMR and EWL taken in the four periods within 24 h also significantly varied and exhibited a circadian rhythm. The minimum value of RMRTNZ was 2.28±0.09 ml/(g·h) at 11:00-13:00 and maximum value was 2.58±0.04 ml/(g·h) occurred at 23:00-01:00; the highest value of NST occurred at 05:00-07:00 valued at 3.08±0.14 ml/(g·h) and the lowest value was 2.69±0.06 ml/(g·h) exhibited at period of 11:00-13:00; The maximum value of EWL was taken at 17:00-19:00 with 3.60±0.31 mg/(g·h). The body temperature variation was varied with change of ambient temperature and with the activeness of the animal in the different period in the 24 h rhythm. The RMR and NST was increase in the night when the ambient temperature was decrease. The animal adjusted their body temperature by increasing EWL in the day.
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