Cambios en los niveles sanguíneos de vitaminas A y E, selenio, leucocitos y expresión de moléculas de BR adhesión para migración en neutrófilos en vacas lecheras alrededor del parto

Abstract

Blood samples from ten Swedish dairy cows were taken one month before calving, at calving, and one month after calving. The blood concentration of vitamins A and E, and the trace element selenium (Se) were analysed, as well as the total and differential white blood cell counts,a nd the presenceo f CD62L and CD18 adhesionm oleculeso n blood neutrophils. The levels of vitamins A and E decreased significantly at calving, while whole blood Se increased Leukocytosisw as detectedat calving, explainedm ainly by neutrophilia.T he number of lymphocytest endedt o decreasea t calvrng.T he proportion of CD62L- neutrophilsd ecreased sisnlficantlv at this ttme

Keywords

• vacas lecheras
• inmunidad
• leucocitos
• vitaminas