中缅树鼩消化道长度和重量变化  

Variations on Length and Weight of the Digestive Tract in Tupaia belangeri

作　　者：蔡金红[1] 朱万龙[1] 谢静[1] 贾婷[1] 王睿[1] 练硝[1] 王政昆[1] 

机构地区：[1]云南师范大学生命科学学院生物能源持续开发利用教育部工程研究中心,昆明650092

出　　处：《动物学杂志》2010年第1期140-144,共5页Chinese Journal of Zoology

基　　金：科技强省重点项目(No.2007C000Z1);云南省教育厅科学研究基金项目(No.08J0014);云南省基金项目(No.2007C043M)

摘　　要：为探讨栖息于昆明禄劝地区中缅树鼩(Tupaia belangeri)的消化道特征与环境之间的适应关系,在2008年6月和12月(夏季和冬季)分别对自然环境中缅树鼩的胃、小肠、大肠、盲肠的长度、含内容物重、去内容物重、干组织重等消化道指标进行了测定。结果表明,中缅树鼩消化道特征冬季和夏季存在变化,随着温度降低、食物质量下降,中缅树鼩的小肠长度和重量增加;各器官重量均在冬季最大;中缅树鼩在受到低温、食物质量下降等因子胁迫下,通过调节消化道长度和重量来满足能量需求的增加,维持正常的生理机能。中缅树鼩的消化道在冬季和夏季中表现出的变化模式及消化对策对其在自然环境中的生存是至关重要的。In order to investigate the relationship between the morphology of digestive tract in Tupaia belangeri from the region of Luquan in Kunming and habitual environment, variations on length and weight of the digestive tract including stomach,small intestine,large intestine, caecum in June（summer） and December（winter） 2008 were measured,respectively. The results showed that the digestive tract characters in T. belangeri had variations between summer and winter. The length and weight of small intestine increased in low ambient temperature and poor food quantity; the weights of organs were largest in winter in T. belangeri. The results of present study indicated that T. belangeri could meet with the environment threats like low ambient temperature, less available of food by altering the length and weight of digestive tract. The change pattern of T. belangeri in summer and winter were suggested that the adjustments in capacity and size of the gastrointestinal tract play an important role in their digestive strategies of T. belangeri in natural environment.

关 键 词：中缅树鼩 消化道 能量需求 

分 类 号：Q954[生物学—动物学]