My father in law just had one of his sows gave birth last night. My wife and the children were up late last night waiting to see just how many. Well the count went to 16 before she stopped all health and no runts. I thought that seem to be a lot so in searching Google came up with this. Hogs are very prolific; a sow can have two litters of pigs a year. The average litter size is 7.5 pigs, and it is not uncommon for a sow to have 12-14 pigs per litter. The gestation period of a sow (from the time she is bred until she farrows) is 114 days. fourteen teats A sow should have at least fourteen teats which should be long and thin enough for the piglet to grasp. Each piglet suckles from its own teat feeding every hour. The first born and stronger piglets use the teats nearest the sow's head which produce most milk. Christmas dinner is being made as we speak.