EFFECT OF SELENIUM IN SOLUBLE GLASS BOLUS ON SELENIUM CONTENT OF MILKAND BLOOD OF GOATS

Soluble glass bolus (SGB) with selenium (Se) was administered intrarum inally to Se-deficient Philippine does to determine its effect on milk Se and to correlate the Se contents of does' milk and blood of does a nd kids. Five months after the Se administration, the does in the trea ted group (n = 14) had higher (p < 0.01) Se content in their blood (62 .2 vs 25.7 mu g/L) and milk (5.1 vs 2.5 mu g/L) than does in control g roup (n = 13). Consequently, the blood Se of the kids (n = 14) from th e treated does was higher (p < 0.05) than those kids (n = 13) in the c ontrol group (28.0 vs 5.1 mu g/L). Blood and milk Se of does and blood Se of their kids correlated (p < 0.01) with each other. The increased Se level of does' milk because of Se supplementation was not regarded as a health hazard to humans.