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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2013 Vol.32 No.1

Primary Studies of Ultrastructure and Part Element Component in Eggshell of Stachyris nonggangensis
Author of the article:JIANG Ai-wu1,2,LIU Nai-fa1,LI Xiao-dong2,ZHOU Fang3*
Author's Workplace:(1. School of Life Science, Lanzhou University, Lanzhou 730000, China; 2. Department of Chemistry & Life Science, Hechi University, Yizhou, Guangxi Zhuang Autonomous Region 546300, China; 3. School of Animal Science & Technology, Guangxi University, Nanning 540004, China)
Key Words: eggshell; ultrastructure; element component; Stachyris nonggangensis; limestone
Abstract: In order to explore the characters of eggshell of Nonggang babbler (Stachyris nonggangensis), a new described bird species in limestone area of southwestern Guangxi, scanning electron microscopy were used to observe eggshell and part element component were measured by flame atomic absorption method and spectrophotometry. The result indicates that eggshell of Nonggang babbler, average (81.50±3.04) μm (n=30) thick, can be divided into 4 layers including surface, palisade, cone and membrane layer from outside to inside. Surface layer, with some open pores and craquelures in outside, is very rough. Palisade layer, with a lot of vesicular holes, is the key component of eggshell. Cone layer consists of basement and mammilla layer. Furthermore, membrane layer is made up of multi-layer protein fiber with the diameter about (1.28±0.50) μm (n=30) in length. Calcium, with 507.26 mg/g in density, is the main elements. Microelement as ferrum, strontium, manganese and aluminum were found in the eggshell of Nonggang babbler. However, these structures and element component may be a special adaption to the limestone habitat and poor flight ability of Nonggang babbler.
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