冷驯化对中缅树qu产热能力的影响

The Effects of Cold Acclimation on Thermogenesis in Tree Shrews (Tupaia belangeri)

摘要: 在(5±1)℃条件下对中缅树qu(Tupaia belangeri)进行低温胁迫处理(0-28 d)，测定其冷驯化过程中的静止代谢率(RMR)、非颤抖性产热(NSTmax)、冷诱导最大产热(CIRMR)、体重、体温等生理指标，探讨低温对中缅树qu产热能力的影响。结果表明：①冷驯化期间中缅树qu体重增加，体温降低，产热能力显著增强；②在冷驯化过程中，增加RMR和CIRMR是中缅树qu抵抗低温胁迫的主要产热模式。

Abstract: The resting metabolic rate (RMR),maximal nonshivering thermogenesis (NSTmax),cold induced resting metabolic rate (CIRMR),body mass,body temperature of the tree shrews were measured.The results showed that the body mass and the capacity of heat production in the coldacclimated groups were higher,and body temperature was lower than that in the control.The increase of RMR and CIRMR during cold acclimation was the main pattern of heat production in tree shrews.