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Protein, energetic, enzymatic and mineral profile of Nellore cows during the pregnancy, parturition and postpartum

Oliveira, Wagner Dias Coelho de; Dias e Silva, Tairon Pannunzio; Bezerra, Leílson Rocha; Araújo, Marcos Jácome de; Edvan, Ricardo Loiola; Oliveira, Ronaldo Lopes.
Acta Sci. Anim. Sci.; 42: e49022, out. 2020. tab
Artigo em Inglês | VETINDEX | ID: vti-26715

Resumo

The aim of this study was to evaluate the protein energetic, enzymatic and mineral profile of Nellore cows during the pregnancy, parturition and postpartum. Fifteen multiparous cows with 4 ± 1 years of age and live weight of 400 ± 50 kg were used at different stages (non-pregnant, in the initial, middle and late pregnancy, at birth, one day postpartum, 30 and 60 days postpartum). Blood collections were performed every 30 days and assayed for the following blood biomarkers: Protein (total proteins, albumin, urea and creatinine), energetic (cholesterol, triglycerides, glucose and beta hydroxybutyrate), mineral (calcium, phosphorus, magnesium) and enzymatic (alkaline phosphatase and aspartate aminotransferase). Calcium had the lowest concentrations (p < 0.05) in the initial pregnancy, while phosphorus had the highest concentration at parturition (p < 0.05). Triglycerides, glucose and beta hydroxybutyrate were influenced by the stages of pregnancy, reducing in the late pregnancy and at parturition. Glucose had a reduction in the late pregnancy and elevation in the postpartum. Beta hydroxybutyrate showed increase at the late pregnancy. Although lipomobilization occurred in the phases of higher metabolic demands in the attempt to maintain homeostatic conditions. Nellore cows did not present negative energy balance in the late pregnancy period, maintaining normal variation in blood markers throughout the experimental period.(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1