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Efeito do tempo após a ingestão de leite sobre o equilíbrio ácido-básico de bezerros

2003; UNIVERSIDADE FEDERAL DE MINAS GERAIS; Volume: 55; Issue: 6 Linguagem: Inglês

10.1590/s0102-09352003000600014

1678-4162

Júlio Augusto Naylor Lisbôa, Fernando José Benesi, M.L.R. Leal, Cynthia Maria Carpigiani Teixeira,

Animal health and immunology

Blood pH, carbon dioxide and oxygen partial pressures, bicarbonate, total carbon dioxide, base excess, standard bicarbonate and oxygen saturation concentrations were measured by blood gas analyses in a study of assessment of the acid-base status in young calves. Venous blood samples were taken from 80 healthy female Holstein calves, from four to 30 days of age. The calves were divided in two groups based on the interval between the morning milk feeding and the blood sample collection (up to 30 minutes or over two hours). Greater alkali reserve and higher carbon dioxide pressure values were observed later than 2h after milk feeding, supporting the influence of the diet on the acid-base balance of calves during the milk feeding phase.