Proper management of piglets is important, especially in a nucleus herd. Tattooing the piglets will ensure that the breed and farm origin of the pigs is followed throughout production. Individual sow record keeping helps keep track of the litter breeding history of the sows and then it can be determined whether the sow is worth re-breeding. Piglet fostering is important so piglets can be grouped by size and put on the better milking sows if they are falling behind. It is done within the room to avoid potential spreading of disease. Treatments are administered as the need arises and they are all recorded for quality assurance. Iron is injected and tails are docked to minimize tail biting and for use as a handle. Castration is performed at day 8 on the market pigs. Secondary factors affecting piglets include having healthy mothers, optimal sanitation, timely fostering techniques, quality employees, and reasonable targets.