Comparison of Serum IgG and Biochemical Parameters at the Postpartum Period in Dairy Cows and Heifers

The aim of this study was to compare the levels of serum IgG and biochemical parameters at the postpartum period in dairy cows and heifers. Blood samples were taken immediately after birth from 48 cows, including twenty-four heifers and 24 cows which experienced two or more deliveries. Serum IgG level was determined by ELISA method and macromineral and biochemical parameters by using autoanalyzer. When serum biochemical parameters and IgG levels of heifers and cows were compared; in heifers, serum ALP, LDH and phosphorus levels were significantly higher (P<0.05) and IgG and Mg levels were significantly lower (P<0.05). In conclusion, it is determined that there are significant differences in serum immunoglobulin G, macromineral and some biochemical parameters between heifer and cows at the postpartum period and that it would be useful to consider these changes in postpartum period in dairy cows