Evaluation of the vitality of nelore calves born of normal or dystocic parturitions

• Autor(a) principal: Feitosa, Francisco Leydson Formiga [UNESP]
• Data de Publicação: 2012
• Outros Autores: Perri, Silvia H. V. [UNESP], Bovino, Fernanda [UNESP], Mendes, Luiz C. N. [UNESP], Peiró, Juliana Regina [UNESP], Gasparelli, E. R. F. [UNESP], Yanaka, Rodrigo [UNESP], Camargo, D. G. [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• DOI: 10.15361/2175-0106.2012v28n1p001-007
• Texto Completo: http://www.arsveterinaria.org.br/index.php/ars/article/view/362; http://hdl.handle.net/11449/133084
• topic: Acidosis; Apgar; Blood gas analysis; Bovine; Acidose; Apgar; Bovino; Hemogasometria; pH

Adaptation to extrauterine life is a critical period for the newborn. Numerous changes occur in different organ systems including respiratory function and acid-base equilibrium. Newborns may die due to hypoxia or trauma sustained during delivery. Thirty Nelore calves were used in this study, 18 born of normal and 12 of dystocic calving, to determine the influence of the type of parturition (normal or dystocic) on both neonatal Apgar score and blood gas analysis parameters of calves. The blood samples were collected by jugular venipuncture immediately after birth and 24 hours later. The blood pH, oxygen partial pressure (pO2), carbon dioxide partial pressure (pCO2), total carbon dioxide (TCO2), bicarbonate concentration (HCO3-), base excess (BE) and oxygen saturation (SO2) were determined by using a portable blood gas analyzer. Significant differences were observed over time in the blood gas values of the calves during this study. The calves born from dystocic parturition had respiratory acidosis and lower vitality in the immediate post-partum period.