The group A was fed with basic feed,and the groups B,C,D were injected peritoneally with vitamin D3(600 000 U/kg). Then they were fed with high lipid diets for 8 weeks.

• A组喂食基础饲料; B、C、D组大鼠一次性腹腔注射60万U/kg维生素D3,后喂食高脂饲料8周。