National Changhua University of Education Institutional Repository : Item 987654321/12224
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 6507/11669
造访人次 : 29950391      在线人数 : 518
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.ncue.edu.tw/ir/handle/987654321/12224

题名: Seasonal Reproductive Activity of Male Formosan Wood Mouse, Apodemus Semotus: Relations to Androgen Levels
作者: Lee, Chi-Ying;Alexander, Paul S.;Cheng, Vinian V.;Yu, John Yuh-Lin
贡献者: 生物學系
关键词: Androgen;Apodemus semotus;Reproductive cycle;Spermatogenesis;Wood mouse
日期: 2001-08
上传时间: 2012-07-03T04:02:27Z
出版者: BioOne
摘要: The annual reproductive cycle of adult male Formosan wood mice (Apodemus semotus) collected monthly from the Alishan area, Taiwan, was investigated. Mean monthly body mass varied between 25.0 g ± 0.8 SE and 27.1 ± 1.3 g and did not show significant seasonal change. Mass of reproductive organs, spermatogenic activity, and levels of testicular and plasma androgen exhibited a distinct pattern of seasonal change. Testes, epididymides, and seminal vesicles were lightest and spermatogenesis was virtually arrested in January and December. For the remainder of year, all animals examined were spermatogenically active. However, spermatogenic activity was most intense and reproductive organs were heaviest in March–April and August–September. A decline occurred in mass of reproductive organs and diameter of seminiferous tubules in May–July, but spermatogenesis was unaffected qualitatively. Levels of testicular and plasma androgen were elevated in March–April and August–September, coinciding with periods of intense spermatogenic activity and the heaviest reproductive organs and were significantly correlated with mass of testes, epididymides, and seminal vesicles, and diameter of seminiferous tubules. Day length and temperature, but not precipitation, were correlated with mass of testes, epididymides, and seminal vesicles. This is the 1st study to investigate seasonal patterns of androgen levels in plasma and testes in the genus Apodemus.
關聯: Journal of Mammalogy, 82(3): 700-708
显示于类别:[生物學系] 期刊論文

文件中的档案:

档案 大小格式浏览次数
2020300310005.pdf26KbAdobe PDF382检视/开启


在NCUEIR中所有的数据项都受到原著作权保护.

 

DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈