Avaliação da transferência de imunidade passiva em bezerros recém-nascidos oriundos de partos distócicos obtidos por cesariana

Abstract

The aim of this study was to evaluate the transfer of passive immunity in calves coming from dystocia, obtained by Caesarean section, the first days of life. were selected for this study were 30 pure newborn calves (Girolanda, Dutch and Brown Swiss) and his mixed race, born from cows treated at Cattle Clinic, Campus Garanhuns / UFRPE in situations of dystocia (fetal and / or maternal) and submitted cesarean section. Shortly after birth the calves colostrum ingested ad libitum and those who did not receive the own mother, was administered by the Bank of Colostrum the volume equivalent to 10% of the live weight of the animal, divided into two daily feedings. The administration of colostrum was maintained for a minimum period of 48 hours. Previously, the animals were examined clinically and established the evaluation moments: 0h (before ingestion of colostrum), 6h, 12h, 18h, 24h, 48h, 72h, 96h and on the eighth day after birth. The sera obtained were kept in a freezer at -200C. It was determined the concentration of immunoglobulin G (IgG), serum total protein, the fraction of gamma globulin and serum activity of gamma glutamyl transferase (GGT). significant increase was found (P <0.05) of all variables, starting 6 hours after ingestion of colostrum, reaching maximum values ​​of IgG absorption at 48, these levels considered appropriate to the calf protection. Given the above it was be satisfactory transfer of passive immunity in calves coming from dystocia, which mothers were undergoing cesarean section