Abstract: The skeleton length of Wistar-Imamachi rat population 5～16 week ages was compared.The results show the skeleton is correlation with week ages including the total length of cranium,the length in base,the cranium height,the upper cheek tooth width,upper tooth arrange length,left upper arm bone length,the 3rd cervical vertebra length and the 1st lumbar vertebrae length,except upper cheek tooth width and upper tooth arrange length of male rats.

Key words: Wistar-Imamachi rat

摘要： 目的对Wistar-Imamichi大鼠封闭群5～16周龄两性个体骨骼的10个长度指标分别进行了测量,得出了骨骼与周龄的直线回归方程。除雄性颧宽、上臼齿列长两项指标与周龄无相关关系外,颅全长、基长、颅高、眶间宽、上齿隙长、左肱骨长、第3颈椎长、第1腰椎长以及雌性颧宽、上臼齿列长与周龄显著正相关。

关键词: Wistar-Imamichi大鼠, 骨骼, 周龄