To examine whether rat osteoportic model was established quickly by high protein and low calcium diets, Forty female Wistar rats (3 weeks old) were randomly divided into 5 Groups and fed with diets formulated according to AOAC for twenty weeks.

• 为了用营养干预的方法制作骨质疏松动物模型 ,并通过生化、骨密度测定以及病理学检查等鉴定骨质疏松模型 ,将 3周龄 Wistar大鼠按体重随机分为 5组 ,每组 8只 ,饲料配方参照 AOAC方法。