中文摘要：

在实验室条件下测定了大绒鼠和高山姬鼠在不同温度下的蒸发失水与能量代谢。结果表明：大绒鼠和高山姬鼠的热中性区分别为22.5～30℃和25～30℃;平均体温分别为36.12℃和36.17℃;大绒鼠和高山姬鼠的基础代谢率（BMR）分别为2.99±0.48mlO2/g·h和4.24±0.50mlO2/g·h;大绒鼠和高山姬鼠的平均最小热传导（Cm）分别为0.26±0.038mlO2/g·h·℃和0.32±0.034mlO2/g·h·℃;大绒鼠和高山姬鼠的蒸发失水随着温度增高而增加,大绒鼠的蒸发失水在30℃达高峰值,为10.32mgH2O/g·h,高山姬鼠在35℃达高峰值,为14.57mgH2O/g·h;大绒鼠和高山姬鼠的热散失占总产热的比率随着温度增高而增加,大绒鼠在30℃达到最大为34.6%,高山姬鼠在35℃达到最大为37.5%。这些结果很可能反映出横断山小型啮齿类动物的特征,即体温相对较低,代谢水平较高,热传导也较高,蒸发失水在总产热中占有重要的地位。

英文摘要：

The evaporative water loss （ WEL} and energy metabolism were measured in different temperatures in Eothenorays miletus and Apodemus chevrieri in laboratory. The thermal neutral zone （TNZ} of Eothenomys miletus was 22.5～30℃ and of Apodemus chevrieri was 25～30℃. Mean body temperature were for two species were 36.12℃ and 36.17℃. Basal metabolic rates （ BMR} were 2.99±0.48mlO2/g·h and 4.24±0.50mlO2/g·h, respectively. Average minimum thermal conductance （ Cm } was 0.26±0.038mlO2/g·h·℃ and 0.32±0.034mlO2/g·h·℃. Evaporative water loss in E. miletus and A. chevrieri increased when the temperature enhanced, the maximal evaporative water loss was 10.32mgH2O/g·h in 300℃ in E. miletus, and was 14.57mgH2O/g·h h in 350℃ in A. chevrieri. Percentage of evaporative heat loss to total heat production （EHL/HP} increased when the temperature enhanced, the maximal EHL/HP was 34. 6% in 30℃ in E. miletus, and in A. chevrieri was 37.5% in 35℃. The results may reflect features of small rodents in the Hengduan mountains region： both Eothenomys miletus and Apodemus chevrieri have high levels of basal metabolic rate and high levels of total thermal conductance, compared with the predicted values based on their body masses while their body temperatures are relatively low. Evaporative water loss plays an important role in temperature regulation.