Maximum metabolizable energy intake in the Mongolian gerbil (Meriones unguiculatus)
Maximum metabolizable energy intake in the Mongolian gerbil (Meriones unguiculatus)
复制标题
DOI：
10.1006/jare.2002.0999
复制
发表时间：
2002-11-01
影响因子：
2.7
通讯作者：
Wang, ZW
中科院分区：
文献类型：
--
作者：
Liu, H;Wang, DH;Wang, ZW
本研究的目的是测定长爪沙鼠的最大代谢能摄入量。代谢笼法测定代谢能摄入量，采用两种冷暴露方法诱导代谢能摄入量：I组从23℃到-9℃逐渐冷暴露，5℃时达到最大代谢能，并维持到-9℃(3.40+/-0.42kJ·g(-1)天(-1))，是基础代谢率的3.31倍；蒙古沙鼠能在较宽的温度范围内保持其最大摄氧量，这表明长爪沙鼠具有更强的耐受能力。自然环境中的环境温度波动。集团的梅。在0℃和-6℃，II组均低于I组。冷习服可增加最大代谢能，增强对冷应激的适应能力。蒙古沙鼠能够改变自己的生理表现，以适应自然环境。(C)2002年爱思唯尔科学有限公司。
The objective of this study was to determine the maximum metabolizable energy intake (MEImax) in the Mongolian gerbil (Meriones unguiculatus). Metabolizable energy intake was measured with metabolic cage and induced by two cold-exposure procedures: group I was gradually exposed to cold from 23degreesC to -9degreesC, MEImax was gained at 5 and kept till -9degreesC (3.40 +/- 0.42 kJ g(-1) day(-1)), 3.31 times the basal metabolic rate (BMR); Group II was directly exposed to cold temperature (0degreesC and -6degreesC). Mongolian gerbil could maintain their MEImax in a wide temperature range, suggesting that Mongolian gerbils have a greater capacity to tolerate the. ambient temperature fluctuation in their natural environments. MEI of group. II was lower than that of group I at 0degreesC and -6degreesC. Cold acclimation could increase the MEImax and enhance the ability to cope with the cold stress. Mongolian gerbils are able to change their physiological performance to adapt to their natural environments. (C) 2002 Elsevier Science Ltd.