Factors that Affect GF Performance are health, genetics, nutrition (energy, dietary lysine level), feeder pig weight, barn design and gender. Economic summary assumes the following: total grow-finish cost = $55 / pig; facility cost = $0.10 / pig / day; feed cost = $120 / ton (unless given); deathloss cost = $75 / pig; and additional live weight = $45 / cwt.