关键词: 刺猬, 褐色脂肪, 非颤抖性产热, 静止代谢率

Abstract: The variations of nonshivering thermogenesis (NST ) and brown adipose tissue (BAT ) in weight and uhrastrueture were studied in the hedgehogs (Erinaceus europaeus)，so as to deal with the function of BAT during arousaI from hibernation． The results showed that，the relative weight of BAT in hedgehogs was the lowest (0．23% )in summer(July)，andinereased rapidlyin autumn，the highest value of relative weight was observed in the prehibernation (November)；no variations were observed in the hibernating hedgehogs，but decreased rapidly during arousal from hibernation (0．32 %)．The variation of BAT were related to the heat production during arousa1．The numbers and sites of fat droplets and mitachondria cristaes of BAT in the prehibernating and hibernating hedgehogs were higher than that in the posthibernating hedgehogs，and show the hibe rnating hedgehogs could be able to produce heat rapidly during arousal from hibernatoin．
The results also showed that the thermoneutral zone was the ranges 25℃ to 27℃ and the lowest RMR (mlO₂／g／h)was 2．577士0．654 in the awaking hedgehogs，over the Ta．ranges 0℃ to the low artical tem perature，a significantly negative correlation and a regression was observed between the Ta．and the RMR：The lowest RMR was 0．064 at th e Ta．of 5℃ in the ibernating hedgehogs,and the Ta．also affected RMR．
The NE— NST expressed in two forms：the maxmium metabolic response to NE (NSTmax)，and the absolute increase in oxygen consumption ( (NSTmax—RMR)／RMR )．NSTmax in the awaking hedgehogs was higher than that in the hibermating hedgehogs，and show the body temperature of hibernating hedgehogs inhibited the metabolic rate；The absolute increase in oxygen consumption in the awaking hedgehogs was lower than that in the hibernating hedgehogs，and show the NE- NST was the main heat source during arousal from hibe rnation．

Key words: Hedgehog (Erinaceus europaeus), Brown adipose tissue (BAT), Nonshivering th~ mogenesis (NST), Resty metabolic rate (RMR)．