The mice were fed with water dissolved different level Y^3+ (0, 23.25, 2325.00 mg· L^-1) for seven months, and the levels of trace elements such as Cu, Zn,
Young Wistar rats were divided into six groups,the experimental groups were given La(NO3)3 at dose of 20,10,2,0.2,0.1 mg*kg-1 and the control group was given ph