Passive transfer of immunity in newborn calves delivery by cesarean section

• Autor(a) principal: Júnior, José Bonifácio Pires
• Data de Publicação: 2013
• Outros Autores: Buonora, Cândida Roberta de Almeida Rêgo, Afonso, José Augusto Bastos, Dantas, Franklin Roosevelt, Pereira, André Luiz Lopes, Vieira, Aerlem Cynnara Silva, de Mendonça, Carla Lopes
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Brazilian Journal of Veterinary Medicine
• Texto Completo: https://rbmv.org/BJVM/article/view/606
• topic: Bovinos neonatos; distocia; cesariana; transferência passiva de imunidade; IgG; Neonate bovine; dystocia; cesarean section; passive transfer; IgG

ABSTRACT. Pires Júnior J.B., Buonora C.R. de A.R., Afonso J.A.B., Dantas F.R., Pereira A.L.L., Vieira A.C.S. & de Mendonça C.L. [Passive transfer of immunity in newborn calves delivery by cesarean section]. Transferência de imunidade passiva em bezerros oriundos de partos distócicos obtidos por cesariana. Revista Brasileira de Medicina Veterinária, 35(2):111-116, 2013. Clínica de Bovinos, Campus Garanhuns Universidade Federal Rural de Pernambuco, Av. Bom Pastor s/n, Caixa Postal 152, Bairro Boa Vista, Garanhuns, PE 55292-270, Brasil. E-mail: [e-mail] The aim of the study was to assess the transference of passive immunity in newborn calves following dystocic delivery by cesarean section. Immediately following birth, the calves ingested colostrum ad libitum. To those that did not receive it from the mother, colostrum was administered at a volume equivalent to 10% of the live weight of the animal two daily feedings. The administration of colostrum was maintained for at least 48 h. The following evaluation times were established: 0 h (prior to ingestion of colostrum), 6 h, 12h, 18 h, 24 h, 48h, 72 h, 96 h and on the eighth day following birth. The concentrations of immunoglobulin G (IgG), total serum protein, fraction of gamma globulin and serum activity of gamma glutamyltransferase (GGT) were determined. There was a significant increase (P < 0.05) in all variables analyzed beginning 6 h following the ingestion of colostrum, with maximal IgG absorption values reaching 1950.0 mg/dL at 48 h, which is considered adequate for the protection of calf. It was concluded that dystocia (maternal and/or fetal) had no influence on passive transfer of immunity in newborn calves delivery by cesarean section.