Boars were fed
one of three dietary selenium treatments from weaning
through the remainder of the study: 1) a basal diet containing
no supplemental selenium (control); 2) the basal diet
supplemented with 0.3 parts per million (ppm) of sodium
selenite (inorganic); or 3) the basal diet supplemented with
0.3 ppm of selenium enriched yeast (Sel-Plex 2000, Alltech
Biotechnology Center, Nicholasville, KY; organic)