2016•Asian Journal of AndrologyOpen access

Decline of semen quality among Chinese sperm bank donors within 7 years (2008-2014)

Zi‐Jiang Chen, Li Wang, Lin Zhang, Xiao-Hui Song, Hao-Bo Zhang, Chengyan Xu

Abstract

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.

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Key concepts: Sperm, Semen, Sperm bank, Semen quality, Andrology, Sperm motility, Sperm quality, Biology