关键词: 布氏田鼠, 日食量, 体重

Abstract: Objective Analyze the daily food consumption of different age group and sex Brandt's vole(Lasiopodomys brandtii) in laboratory.Methods Feed the Brandt's vole with their favorite food,and calculate the difference between the given food and leavings after 24 h referring to Principles of Animal Ecology by Sun Ruyong.Results(1) The average daily food consumption of Brandt's vole was(9.9361±0.2383)g.That of adult group was higher than sub-adult and elder groups.There were significant differences among the daily food consumption of different age groups(P<0.05).Among them,the daily food consumption index of sub-adult group was the highest.(2) There was no direct correlation between sex and daily food consumption.(3) The body weight of sub-adult rat had the positive relativity with daily food consumption,however there was negative correlation in elder group.And the linear regression equations were y=0.2882w+2.099(R²=0.8191) and y=-0.1565w+19.034(R²=0.5652),respectively.There was no direct correlation between weight and daily food consumption of adult group.Conclusion There was different relationship between body weight and food consumption.If evaluate the harm according to Brandt's body weight, we should master the age structure of Brandt's vole and its corresponding population density,and also take seasonal characteristics and physiological characteristics into account.