In order to study the effect of dietary copper level on blood and tissue copper contents in geese, one-week Sichuan white geese were randomly divided in- to four groups, and the geese in the first, second, third and fourth groups were fed with diet with copper levels of 39.55, 127.60, 194.75 and 255.22 mg/kg, respective- ly. At the ages of 4, 6, 8, 10 and 12 weeks, the contents of copper in blood, liver, chest muscle and subcutaneous fat of the geese were determined. The effects of dietary copper level, age and sex on the blood and tissue copper contents of geese were analyzed by multivariate analysis of variance. The results showed that the di- etary copper level showed no significant effects on the blood and liver copper con- tents of geese （P〉0.05）; the chest muscle copper content of geese in the second group was significantly higher than that in the first group （P〈0.05）; the subcuta- neous fat copper content of geese in the fourth group was significantly higher than those in the other three groups （P〈0.01）; the age had significant effects on the blood, liver, chest muscle and subcutaneous fat copper contents of geese （P〈0.01）; and the sex showed no significant effects on the blood and tissue copper contents of geese （P〉0.05）.
