| 乌梢蛇精巢显微结构的年周期变化 |
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| 引用本文： | 梁刚,周艳妮,王琼霞.乌梢蛇精巢显微结构的年周期变化[J].动物学杂志,2008,43(2):116-122. |
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| 作者姓名： | 梁刚 周艳妮 王琼霞 |
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| 作者单位： | 1. 陕西师范大学生命科学学院,西安,710062
2. 北京市苹果园中学 |
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| 基金项目： | 陕西省自然科学基金项目(No.2007C114)，陕西师范大学校级重点科研项目 |
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| 摘 要： | 用光镜观察了乌梢蛇(Zaocys dhumnades)精巢显微结构的年周期变化,并结合精巢重量、精巢体积及精巢系数的年周期变化探讨了其生殖规律。结果表明,乌梢蛇精巢重量、精巢体积、精巢系数、曲细精管直径、生精上皮厚度及组成均具有明显的季节性变化。据此将乌梢蛇精巢的年周期活动划分为6个时期,其精子发生属于非连续型,生殖周期的类型属于交配后型。用精巢系数的年周期变化作为参数来判定精子发生进程是可靠的。
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| 关 键 词： | 乌梢蛇 精巢 显微结构 生殖周期 |
| 文章编号： | 0250-3263(2008)02-116-07 |
| 收稿时间： | 7/6/2007 12:00:00 AM |
| 修稿时间： | 2007年7月6日 |
Annual Variation in Testicular Microstructure of Zaocys dhumnades |
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| LIANG Gang,ZHOU Yan-Ni and WANG Qiong-Xia.Annual Variation in Testicular Microstructure of Zaocys dhumnades[J].Chinese Journal of Zoology,2008,43(2):116-122. |
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| Authors: | LIANG Gang ZHOU Yan-Ni and WANG Qiong-Xia |
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| Institution: | College of Life Science,Shaanxi Normal University,Xi'an 710062,China;College of Life Science,Shaanxi Normal University,Xi'an 710062,China;College of Life Science,Shaanxi Normal University,Xi'an 710062,China |
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| Abstract: | Combined with the annual variations in mass, volume and somatic index of testis, the changes in testicular microstructure during the annual reproductive cycle was observed in snake (Zaocys dhumnades). The results showed that the seasonal variations in mass, volume, somatic index of testis, seminiferous tubule, and seminiferous epithelium were very evident. The spermatogenetic cycle comprised of six stages with significant features and showed a discontinuous type. Its reproductive type belonged to postcopulative, and its testis somatic index was a reliable parameter for determining the spermatogenesis. |
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| Keywords: | Zaocys dhumnades Testis Microstructure Reproductive cycle |
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