Previous studies done by the PSC found that creep feeding had no effect on litter performance. Although a  new study looked at creep feed disappearance and found that only about half of piglets in a farrowing crate were eating creep feed. A non-toxic dye was put into feed offered to piglets, who were then anal swab after several days to determine who was and was not eating the creep feed. Looking at piglet growth it was found that pigs who were eating the creep feed had higher weights when weaned from farrowing versus pigs who didn’t eat the creep feed. As the pigs were tracked through the nursery it was found that pigs who ate creep feed had higher weights when leaving the nursery. More studies are required to find why only some pigs chose to eat the feed.