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Variation in digestive tract morphology in brown rat(Rattus norvegicus)and its adaptive significance
Anwar Tumur
College of the Life Science and Technology, Xinjiang University, Urumqi 830046
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Abstract  

The animal gut morphology is closed related to food habit,food quality and energy demand.The seasonal changes in length and weight of total digestive tract and separate parts of digestive tract in Rattus norvegicus,which lived in add environment of Xinjiang were determined.The results showed that the length of whole digestive and small intestine and large intestine had significant seasonal variations,which were higher in spring and winter than in autumn and summer.We also discovered that the length and weight of stomach of the species captured in Alashankou region had significant seasonal variations.

Key wordsRattus norvegicus      Gut morphology      Arid zone     
Received: 25 June 2002     
:  Q954.58  
  Q958.11  
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Anwar Tumur
Cite this article:   
Anwar Tumur. Variation in digestive tract morphology in brown rat(Rattus norvegicus)and its adaptive significance[J]. , 2002, 21(3): 233-235.
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http://www.ecolsci.com/EN/     OR     http://www.ecolsci.com/EN/Y2002/V21/I3/233
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