The Book of Household Management by Mrs. Beeton

788. THERE ARE TWO POINTS to be taken into consideration by all breeders

of pigs--to what ultimate use is the flesh to be put; for, if meant to be eaten fresh, or simply salted, the _small_ breed of pigs is host suited for the purpose; if for hams or bacon, the large variety of the animal is necessary. Pigs are usually weaned between six and eight weeks after birth, after which they are fed on soft food, such as mashed potatoes in skimmed or butter-milk. The general period at which the small hogs are killed for the market is from 12 to 16 weeks; from 4 to 5 mouths, they are called store pigs, and are turned out to graze till the animal has acquired its full stature. As soon as this point has been reached, the pig should be forced to maturity as quickly as possible; he should therefore be taken from the fields and farm-yard, and shut up on boiled potatoes, buttermilk, and peas-meal, after a time to be followed by grains, oil-cake, wash, barley, and Indian meal; supplying his sty at the same time with plenty of water, cinders, and a quantity of salt in every mess of food presented to him.