北草蜥幼体短期禁食后的补偿生长  

Compensatory Growth in Juvenile Grass Lizards Following Short Periods of Fasting

作　　者：吴义莲[1] 许雪峰[1] 

机构地区：[1]滁州学院化学与生命科学系,滁州239012

出　　处：《动物学杂志》2006年第4期107-110,共4页Chinese Journal of Zoology

基　　金：安徽省教育厅自然科学基金资助项目(No.2002kj233)

摘　　要：2005年4～5月，对幼体北草蜥（Takydromus septerttrionalis）进行了不同短期禁食的饥饿处理后再供食的恢复生长实验。研究用蜥蜴于2005年4月捕自安徽滁州琅琊山，蜥蜴带回实验室禁食至无尿、粪排出后，随机选取状态较好的39条蜥蜴分为禁食0d（C组）、3d（S3组）、6d（S6组）、9d（S9组）4个组。禁食结束的各实验组蜥蜴用面包虫饱足饲喂至第24d。恢复生长期问，各实验组蜥蜴的体重随饲喂时间延长而增加。饥饿组消化率和同化效率与C组无显著差异，S3组的消化率显著高于S9组、同化效率显著高于S6和S9组。S3组和S9组的摄食量显著高于C组。本研究结果表明，经各短期禁食处理的幼体北草蜥在恢复生长过程中产生了明显的补偿效应；该补偿现象主要因摄食水平显著增加所致。The present paper deals with the recovery growth experiment in Juvenile Grass Lizards, Takydromus septentrionalis, following short periods of fasting. Lizards were collected in April and May 2005 from a population in Chuzhou （Anhui,eastern China） . The captured lizards were transported to our laboratory at Chuzhou University, where they were maintained 10 in each 600 mm × 450 mm × 300 mm （length × width×height ）glass terrarium,of which the bottom was filled with moist soil, grasses and debris. Lizards were kept starved at the nature temperature for 3d prior to feeding to insure post-absorptive conditions.39 lizards were divided into 4 experimental groups,which were deprived of food for 0 （control）,3,6 and 9 days, respectively. The experiment lasted for 24 days for each test group. Then each group was fed with larvae of Tenebrio molitor for the rest of the experimental period. During the recovery growth, wet mass in each test group increased with the lapsed time. Food intake in S3 and S9 were higher than in C. Apparent digestive coefficient （ADC） and assimilation efficiency （AE） in each group by starvation were similar than those in C. ADC and AE in S3 were higher than those in S6 and S9. It is suggested that ： （ 1 ） T. septentrionalis starvation pretreatment for 3,6,9 days show significantly compensatory effect in the recovery growth; （2） the compensatory growth result from significant increase in feeding intensity in the recovery growth.

关 键 词：北草蜥 饥饿 补偿生长 

分 类 号：Q418[生物学—生理学]