标题：Decline of semen quality among Chinese sperm bank donors within 7 years (2008-2014)
作者：Wang, Li; Zhang, Lin; Song, Xiao-Hui; Zhang, Hao-Bo; Xu, Cheng-Yan; Chen, Zi-Jiang
作者机构：[Wang Li] Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Shandong Provincial Key Laboratory of Repr 更多
通讯作者地址：[Chen, ZJ]Shandong Univ, Shandong Prov Hosp, Ctr Reprod Med, Jinan, Shandong, Peoples R China;[Chen, ZJ]Shandong Prov Key Lab Reprod Med, Jinan, Peopl 更多
关键词：male infertility; semen quality; sperm donation
摘要：Semen from 5210 sperm bank donors was analyzed and trends in semen quality were evaluated at Shandong Human Sperm Bank between 2008 and 2014. After 2-7 days of abstinence, semen samples were collected. Measurements of semen volume, sperm concentration, sperm forward motility, and total sperm count were performed. There were significant declining trends in semen volume, sperm concentration, sperm forward motility, and total sperm count. Our results indicate that the quality of semen in this cohort of sperm donors had decreased during the study period.