This experiment was conducted at a commercial pig
nursery (Blunier Pork Farm, Forrest, IL). A total of 1,008
weaned pigs that averaged 21 d old [5.2 ± 0.7 kg BW;
PIC (PIC, Hendersonville, TN) × Monsanto (Newsham
Choice Genetics, West Des Moines, IA)] were used to
verify the nutrient contributions that Exp. 1 and 2 showed
and to evaluate potential health benefi ts of SDE. There
were 4 rooms with individual pen feeders and nipple
drinkers, and each room had 12 nursery pens. About 275
pigs were placed in 4 pens at the center of each room and
separated into 3 BW blocks (heavy, medium, or light).
The largest pigs were selected individually by eye and
placed rotationally into the 4 pens (20 or 21 pigs/pen)
designated for the heaviest BW block. Then, the smallest
pigs were selected and placed into the 4 pens designated
for the lightest BW block. After the selection of the
smallest pigs, the remaining pigs in the center of the room
were designated for the medium BW block. All pigs not
selected were moved from the room. Within block, pigs