Dinâmica dos parâmetros hematológicos em cordeiras durante os primeiros quatro meses de vida
Souza, Damaris Ferreira dePaula, Edson Ferraz Evaristo deFernandes, Sergio RodrigoFranco, Daiane RegonatoKoch, Marilia de OliveiraLocatelli-Dittrich, RosangelaBarros Filho, Ivan Roque deMonteiro, Alda Lúcia Gomes
Important physiological changes affect the blood profile of ruminants during the growth phase, but few studies approach the factors involved in these dynamics in lambs. The aim of this study was to characterize the dynamics of hematological parameters, of total plasma protein (TPP), and of fibrinogen in healthy female lambs during the first four months of life. Blood samples of 35 female lambs were collected at 30, 60, 90, and 120 days old to perform the complete blood count (CBC). The erythrocyte and leukocyte parameters, TPP, and fibrinogen were determined. The means for total red blood cell (RBC) counts at 60 and 120 days differed (P 0.05) between the ages (mean of 1.8) but higher than the reference value for adult sheep (0.5). The initial mean for eosinophil counts (2 cells μL-1) was lower (P < 0.05) than all subsequent ones, and the monocyte count showed the lowest level (P < 0.05) at 120 days (232 cells μL-1). The mean for TPP at 60 days (6.4 g dL-1) was higher (P < 0.05) than the other ages.
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