The influences of age on serum protein values were investigated in juvenile Chinese goose. Statistical comparisons were made for differences in values among different ages. These samples were used to determine baseline data on serum total protein, albumin, globulins and albumin/globulin ratio. Significant variations were not observed in the analyses in relation to the age of birds for serum total protein, albumin and globulins. The albumin/globulin ratio showed significant difference among 21 and 49 day-old Chinese geese. © Asian Network for Scientific Information, 2008.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)