Methods:Sperm abnormality test, sister chromatid exchange(SCE) test in mouse spermatogonia and unscheduled DNA synthesis(UDS) test in mouse sperms were used.

• 方法:采用小鼠精子畸形试验、精原细胞姐妹染色单体互换试验和小鼠精子非程序DNA合成试验。