Impacts of ultraviolet irradiation on the sperm motility and longevity of Acipenser baerii.

Authors :: Zhang Tao
Yan Shi-Wei
Zhang Long-Zhen
Zhuang Ping
Tian Mei-Ping
Yan Wen-Gang
Jiang Qi
Yao Zhi-Feng
Source :: Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao; Aug2011, Vol. 22 Issue 8, p2179-2183, 5p, 1 Chart, 1 Graph
Publication Year :: 2011
Abstract: This paper studied the impacts of different dose ultraviolet irradiation (254 nm, UVC) on the sperm motility and longevity of Acipenser baerii. Ultraviolet irradiation had significant impacts on the sperm motility, its fast motion time, and longevity. With the increasing dose of ultraviolet irradiation, the sperm motility decreased rapidly first, increased rapidly then, and decreased rapidly again. The sperm fast motion time had the similar variation trend as the sperm motility, but the sperm longevity kept decreasing with increasing dose of ultraviolet irradiation. When the ultraviolet irradiation dose increased to 288 mJ·cm<superscript>-2</superscript>, the sperm fast motion disappeared; when the ultraviolet irradiation dose increased up to 324 mJ·cm<superscript>-2</superscript>, the sperm had no motility and died. According to the "Hertwig effect", the optimum ultraviolet irradiation dose for inactivating A. baerii sperm was 216 mJ·cm<superscript>-2</superscript>. [ABSTRACT FROM AUTHOR]

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