Objective (1) To investigate the effect of the dosage of streptozotocin (STZ) and the level of blood glucose (BG) on the incidence and the survival rate of diabetic rats.

• 目的 (1)探索不同剂量链脲佐菌素(streptozotocin，STZ)、不同血糖浓度对糖尿病(diabetes mellitus，DM)大鼠成模率及存活率的影响。