In order to study the mechanism of liver intoxication caused by cadmiun and the role of selenium antagonism to cadmium,ninety 100-day-old chickens were designed into 3 groups,fed with basic ration the control groups fed with,Se-Cd groups basic ration +CdCl_(2)150mg/kg and basic ration +CdCl_(2)150 mg/kg+Na_(2)SeO_(3)22 mg/kg Cd groups,and a certain concentrational cadmium and selenium was added to the basic diets to establish the animal models of subchronic toxication and antagonism of selenium.The results ...