Allometric relationships among body mass, MUZZLE-tail length, and tibia length during the growth of Wistar rats.

Purpose: To investigate allometric relationships among body mass (BM), muzzle-tail length (MTL), and tibia length (TL) in Wistar rats and establish their growth rate change parameters.

Methods: Eighteen male and 18 female Wistar rats were studied from the 3rd to the 21st week of age. BM, MTL, and TL were measured daily, and relative growth was compared using allometry.