Metabolic rate and evaporative water loss in the silky starling （Sturnus sericeus）  

作　　者：Huan-Huan BAO Qing-Jian LIANG Hong-Lei ZHU Xiao-Qiu ZHOU Wei-Hong ZHENG Jin-Song LIU 

机构地区：[1]College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China [2]College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China

出　　处：《Zoological Research》2014年第4期280-286,共7页动物学研究（英文）

基　　金：This study was financially supported the National Natural Science Foundation of China （31070366）, the Natural Science Foundation （LY13C030005） in Zhejiang Province and the Zhejiang Province ＇Xinmiao＇ Project.

摘　　要：To better understand the physiological characteristics of the silky starling（Sturnus sericeus）, its body temperature（Tb）, basal metabolic rate（BMR）, evaporative water loss（EWL） and thermal conductance（C） elicited by different ambient temperatures（Ta）（5-30 ℃） were determined in the present study. Our results showed that they have a high Tb（41.6±0.1 ℃）, a wide thermal neutral zone（TNZ）（20-27.5 ℃） and a relatively low BMR within the TNZ（3.37±0.17 mL O2/g·h）. The EWL was nearly stable below the TNZ（0.91±0.07 mg H2O/g·h） but increased remarkably within and above the TNZ. The C was constant below the TNZ, with a minimum value of 0.14±0.01 mL O2/g·h·℃. These findings indicate that the BMR, Tb and EWL of the silky starling were all affected by Ta, especially when Ta was below 20℃ and the EWL plays an important role in thermal regulation.To better understand the physiological characteristics of the silky starling(Sturnus sericeus), its body temperature(Tb), basal metabolic rate(BMR), evaporative water loss(EWL) and thermal conductance(C) elicited by different ambient temperatures(Ta)(5-30 °C) were determined in the present study. Our results showed that they have a high Tb(41.6±0.1 °C), a wide thermal neutral zone(TNZ)(20-27.5 °C) and a relatively low BMR within the TNZ(3.37±0.17 mL O2/g·h). The EWL was nearly stable below the TNZ(0.91±0.07 mg H2O/g·h) but increased remarkably within and above the TNZ. The C was constant below the TNZ, with a minimum value of 0.14±0.01 mL O2/g·h·°C. These findings indicate that the BMR, Tb and EWL of the silky starling were all affected by Ta, especially when Ta was below 20 °C and the EWL plays an important role in thermal regulation.

关 键 词：Silky starling （Sturnus sericeus） Basal metabolic rate Body temperature Evaporative water loss 

分 类 号：Q958[生物学—动物学]