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Changes in oviduct structure in the black tiger shrimp,Penaeus monodon,during ovarian maturation

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第10期13卷 846-850页

作者： Sitthichai IAMSAARD Siriporn SRIURAIRATANA Boonsirm WITHYACHUMNARNKUL Department of Anatomy Faculty of MedicineKhon Kaen UniversityKhon Kaen 40002Thailand Integrative Complementary Alternative Medicine Research and Development Group Faculty of MedicineKhon Kaen UniversityKhon Kaen 40002Thailand Centex Shrimp Faculty of ScienceMahidol UniversityBangkok 10400Thailand Department of Anatomy Faculty of ScienceMahidol UniversityBangkok 10400Thailand

Objective:To examine the structure of the oviduct of the shrimp Penaeus ***:The oviducts of *** with three different major groups of ovarian development(Group(Gr.) 1:Stages I & V;Gr.2:Stages II & III;and Gr.3:Stage IV) were examined by light,transmission electron,and scanning electron microscopies,***:The epithelium of the oviduct in Gr.1 was composed of tall simple columnar cells with their basal nuclei located on the basement membrane and its thick collagen *** Gr.2,the oviduct seemed to produce some substances and their epithelial cells became transitional with centrally located nuclei and formed some ***,the epithelial cells in Gr.3(at Stage IV) were disorganized,disrupted,and shed accumulated spherical secretory substances including some cellular contents into the ***:The structural changes of the *** oviduct were related to ovarian maturation stages(Grs.1-3).Prior to spawning,only the oviduct epithelium at ovary Stage IV produced and secreted a number of spherical secretion substances into the *** substances may act as the oviductal lubricants to facilitate the spawning process.

关键词： Oviduct Ovarian maturation Black tiger shrimp Penaeus monodon spherical secretory substances

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