Colostrum provides the only natural disease protection they will have until their own mechanism for antibody production begins to function effectively at 4 to 5 weeks. Disease resistance is lowest at 3 weeks. In treating common scours, orally administered drugs are usually more effective than injections. You should use a drug effective against the bacterial strain on your farm. A dry, warm, draft-free environment is of primary importance in reducing scours.
Sanitation is also very important in reducing the incidence of baby pig scours.
Contact your local veterinarian if diarrhea persists or does not respond to treatment. Boar pigs can be castrated any time before they are 4 weeks old. There is less shock on them at an early age and many producers do this chore the first week. In addition to sows' milk, pigs need a creep feed to make maximum gain through weaning. Provide a fresh creep feed at one week of age in a place where pigs can get away from the sow.