[Characteristics of immunoglobulin dynamics and absorption in newborn calves]

A study on protein dynamics in calf blood serum from the time of birth to age of 60 days was carried out by use of electrophoresis on 1% agar gel, immunodiffusion and immunoelectrophoresis with rabbit immune serum against cattle blood serum, colostrum whey and pure nu-globulin. Investigations were performed on the 4th and 24th hour, and on the 3rd, 6th, 8th, 10th, 15th, 20th, 30th, 45th and 60th day after birth. Resorption of colostral gamma globulins, applied intravenously and orally in the form of the preparation lactoplasmin and 10% normal gamma-globulin injected intravenously was followed under experimental conditions. It was established that calves are born with a comparatively low protein level in the blood serum and after feeding with colostrum begins, specific quantitative and qualitative changes in their profile take place, but the changes concerning gamma-globulins are most pronounced. gamma-globulins are best resorbed after oral application of colostral globulin preparations, and not so well after intravenous application. Noral blood gamma-globulin injected intravenously is least resorbed. Eventual causes for this fact are discussed.