### THE EFFECTS OF COLD-ACCLIMATION ON THE METABOLISM OF ENERGY IN TUPAIA BELANGERI

ZHANG Wuxian 　WANG Zhengkun 　XU Weijiang 　YAO Zheng 　NIAN Yongkun

• Online:2005-07-12 Published:2008-07-07

### 冷驯化对中缅树鼩能量代谢的影响

1. 云南师范大学生命科学学院, 昆明

Abstract: The metabolism of energy was determined in tree shrew ( Tupaia belangeri) under cold acclimation condition at 5 ±1 ℃. After 28 d of cold-acclimation , as compared to the control group, the body weight and energy metabolism of the tree shrews were significantly increased, i.e., 7.33 % in body weight; 4.98 % in caloric value of body reaching 30.47 ±0.46 J / g ( N = 8) ; 36.17 % in consumption ; 66.2 % in assimilation; 4.85 % in productive energy reaching 6.98 ±0.53 kJ / 100 g ( N = 7) body weight·day ; 64.0 % in maintenance energy reaching 352.96 ±28.34 kJ / 100 g body weight·day ( N = 7). The results indicated that tree shrews enhanced the capacity of adaptation to cold temperatures by increasing their body weight, consumption, energy intake, maintenance energy, assimilation and productive energy while decreasing physiological mechanisms such as excretion in faeces and urine under cold stress environment. In this way they could maintain the balance in their energy metabolism.