Serum proteinogram in Holstein Friesian calves from birth until 150 days of age

Abstract

This study was carried out to evaluate the influence of the age on the proteinogram of Holstein Friesian calves from birth to 150 days of age. Blood samples of 10 animals were collected at birth and on 15, 30, 60, 90, 120 and 150 days of age. The serum protein presented significant variation (p<0,05), characterized by an increase in the values of the albumen and globulin fractions. The albumen was increased from birth until the 150 days of age, while the gamaglobulin decreased significantly on 15 and 30 days and then increased until 150 days. However, the betaglobulin fraction decreased until the final period of observation, while the alfaglobulin was not influenced by age.