本文报道给小白鼠在正常饮食以外,每日补充ZnSO_410.7μmol/kg,6天以上,对HgCl_23.68μmol/kg所致的胸骨微核有显著的拮抗作用。而仅补一次,即ZnSO_4与HgCl_2同时给或先补ZnSO_424h后再给HgCl_2,则拮抗作用不明显,给ZnSO_4的剂量高达61.9μmol/kg,小鼠无致微核作用。而给HgCl_21.84μmol/kg以上,有明显致微核作用。 This paper reports to mice outside of the normal diet, daily supplementation ZnSO_410.7μmol / kg, more than 6 days, HgCl_23.68μmol / kg caused by the breast micronucleus significant antagonism. However, the supplement of ZnSO_4 and HgCl_2 at the same time or with ZnSO_424h followed by HgCl_2, the antagonism was not obvious, and the dose of ZnSO_4 was up to 61.9μmol / kg, and the mice did not cause micronuclei. While given HgCl_21.84μmol / kg or more, there was obvious micronucleus.