关键词: 饲料, 生长, 繁殖, BALB/c小鼠

Abstract: Objective To compare the effect of two commercial feeds with different nutrient level on growth and reproduction performance in BALB/c mice for providing some scientific data for the utilization of feeds in laboratory mice production.Methods 32 BALB/c adult female mice,18 litter of pup mice and 20 growing mice were randomly divided into two groups and fed two commercial feeds(A and B) with different nutrient level,respectively.The litter size,litter weight in 0～3 weeks,continuate fetus ratio and 4～10 weeks' body weight were determined and analyzed.Results The litter weight and continuate fetus ratio were increased when feeding feeds A,but no significant difference was found on litter size and 5～7 weeks' body weight between two feeds.

Key words: Feeds, Growth, Reproduction