<p><b>OBJECTIVE</b>To evaluate the
semen quality of the
donors.</p><p><b>
METHODS</b>The
semen parameters of the primary samples of 512
donors were examined following the
World Health Organization (
WHO) guide and
computer-aided
sperm analysis (CASA, product by Harmilton Thorne) system.</p><p><b>RESULTS</b>Of the 246 (246/512, 48%)
donors with potential
fertility, only 146 (146/512, 28.5%) came up to the
semen standard set by the
Chinese Ministry of
Health, while 266 (266/512, 52%) were below the
WHO reference values of
semen parameters.</p><p><b>CONCLUSION</b>Repeat
semen analyses may increase the success rate in
screening semen donors. The
semen quality of the
donors suggests that it is necessary to pay more
attention to
male reproductive health.</p>