| The physiological status of cattle and associated dietary factors affect the dietary requirement for Se. To partially quantify these effects, a trial was conducted in which fetuses were collected from pregnant heifers at slaughter. Concentrations of Se in fetal liver decreased significantly (2.03 vs 1.68 ;In summary, Se is an essential nutrient and mechanisms exist for its transfer from the dam to calf. If the dam's blood Se exceeds.12... |