首页 | 本学科首页   官方微博 | 高级检索  
     检索      

黄鳝精巢发育的周年变化
引用本文:周定刚,谭永洪,曹五七,张大祥.黄鳝精巢发育的周年变化[J].四川农业大学学报,2002,20(3):256-261.
作者姓名:周定刚  谭永洪  曹五七  张大祥
作者单位:四川农业大学,动物科技学院,四川,雅安,625014
摘    要:对黄鳝精巢显微和超微结构的观察结果表明 ,其精原细胞可分两种类型 :初级精原细胞和次级精原细胞 ;精子鞭毛轴丝由外周 9组微管和两根中央微管构成 ;间质细胞分布有广泛的滑面内质网和具小管的线粒体。据对10 6尾 (体重为 17~ 32 0 g)黄鳝精巢切片观察 ,黄鳝由雌性完全转变为雄性后 ,精巢已接近发育成熟 ;经 χ2 检验表明 ,其性腺成熟度与体重关系不大 (P >0 0 5 )。性成熟后 ,精巢所处发育阶段 (Ⅰ -Ⅵ期 )主要随不同季节而变化

关 键 词:黄鳝  精巢发育  精巢周年变化
文章编号:1000-2650(2002)03-0256-06
修稿时间:2001年12月27

Annual Change of the Testicular Development in Monopterus
ZHOU Ding gang,TAN Yong hong,CAO Wu qi,ZHANG Da xiang.Annual Change of the Testicular Development in Monopterus[J].Journal of Sichuan Agricultural University,2002,20(3):256-261.
Authors:ZHOU Ding gang  TAN Yong hong  CAO Wu qi  ZHANG Da xiang
Abstract:In this paper, microstructure and ultrastructure of testis in Monopterus has been investigated by using light microscope, scanning electron microscope transmissional electron microscope. It is found that the spermatogonia of the Monopterus are divided into two kinds of type: primary spermatonium and secondary spermatonium. In the shaft of the spermatozoal flagellum, nine microtubular doublets are forming a ring around a central pair of microtubules. Electron micrograph shows extensive agranular endoplasmic reticulum and numerous dense mitochondria with tubular cristae in the interstitial cells of Monopterus. These observations indicate that the intestitial cells pass some strctrual characteristics of mammalian Leydig cells. According to the microscopic examination of the testis section from 106 fish (their body weight were 17~320 grams), it is found that after sex reversal from female to male in Monopterus, their testis has already reached or approached sexual maturity. It is proved by Chi square test that there is no direct relationship between the maturity degree of testicular development and body weight of Monopterus. After sexual mature, testis of Monopterus varies obviously with seasonal cycle.
Keywords:MONOPTERUS  TESTICULAR DEVELOPMENT  ANNUAL CHANGE OF TESTIS  
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号