羊鲍精巢显微结构的研究

目的]为羊鲍的人工繁殖提供理论基础。方法]应用光镜技术研究羊鲍精巢的显微结构。结果]羊鲍精巢由外膜及其内的大量生殖小管组成;外膜将生殖腺和肝胰腺分开,其组织结构由外至内依次为单层立方上皮、平滑肌纤维和结缔组织;生殖小管在生殖腺内部纵横交错,大量分枝,将生殖腺分隔成许多小腔,生殖小管内生殖细胞发育呈现区域化特征,成熟度越高的生殖细胞越靠近生殖小管腔的中央,反之则靠近生殖小管壁分布。结论]羊鲍精巢中生殖细胞的发生及其性腺发育与皱纹盘鲍相类似。

Study on the Microstructure of Spermary of Haliotis ovina Gmelin

Objective] The research aimed to provide theoretical basis for the artificial propagation of Haliotis ovina Gmelin.Method] The microstructure of spermary of Haliotis ovina Gmelin was studied by light microscopy technology.Result]The spermary of H.ovina was composed of adventitia and a large number of seminiferous tubules.The adventitia separated gonad from hepatopancreas,which was composed of outer monolayer,cubical epithelium and smooth muscle fibre and connective tissue.The seminiferous tubules branched extentively in gonad,extended from the outer to the innermost.The gonad was divided into lots of small cavity.The development of germ cell in seminiferous tubules took on regional characters.The more mature germ cell was,the closer to the center of the cavity it was;whereas the less mature one was closer to seminiferous tubules wall.Conclusion] The occurrence of germ cell and gonad development of the spermary of H.ovina were similar to that of Haliotis discus hannai.