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灰仓鼠的生态适应性研究

THE STUDY ON ECOLOGICAL ADAPTABILITY OF CRICETULUS MIGRATORIUS

【作者】 聂时铖

【导师】 遆晓南; 谬力夫;

【作者基本信息】 新疆农业大学 , 动物学, 2001, 硕士

【摘要】 灰仓鼠(Cricetuius migratorius)广布于内陆干旱地区,在新疆北部农业区则是仅次于小家鼠的种群。现有的研究表明,灰仓鼠具有许多现有的实验动物所不具有的特征,具有良好的实验动物化前景。本文分别从温度、食物、水分、代谢等方面对灰仓鼠的生态适应性问题进行研究,以便为灰仓鼠的实验动物化提供一些有用的资料,结果表明: (1)冬季,在2℃--5℃的环境温度下,灰仓鼠能进行冬眠,其冬眠要求的Ta较低,人为的干扰下,灰仓鼠能在几小时内醒眠。冬眠阵较短;就整个冬眠期而言,灰仓鼠的节能效果并不明显。 (2)灰仓鼠的MR(mlO2/g·h)、EWL(mgH2O/g·h)及C(mlO2/g·h·℃)等均高于期望值,因而灰仓鼠不是典型的冬眠动物;灰仓鼠对低温、干旱以及饥饿的适应性强,但对高温的适应性较弱,其存活的上临界温度约为37.5℃。 (3)灰仓鼠在有水无食条件下的耐受性较无水无食条件下更弱,这一反常现象可以通过在饮水中补充Na+予以纠正,从而表明了灰仓鼠对高盐地区生活环境的强依赖性。

【Abstract】 Cricefulus rnigraborius distributes over high latitudes arid area of landlocked provinces. It’s a kind of new type laboratory animal remain to developed. Available researched achievement indicated that it has some specific properties which the others don’t have. The study about ecological adaptability of C. migratorius is one of the most important contents. Author made a thorough study about the effect on C. migraforizds under low temperature, hungriness, water-lacking conditions. Results showed: (1) C. migratorius can enter into hibernation under an ambient temperature 2-5 ~C in winter. During this time, it has some different characteristics to the others available laboratory animals. (2) The MR(mlO2/g h), C(m102/g h ), and EWL(mgH2O/g h), of C. migratorius are higher to the predicated ; It shows powerful endurance to low temperature and dry environment but faint adaptability to high temperature , the lethal Upper critical temperature is about 4O~C. (3) C. rnigratorius shows better adaptability under no drink and no food than offering drink but no food. This interesting abnormal result can be rectified through adding inorganic ion, this indicated that the reduction of endurance is because of the disruption of ion balance of Internal environment. A even more experiment reveal Na~ balance is the most important inorganic ion balance in blood serum.

  • 【分类号】Q959.837
  • 【下载频次】102
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