The three main breeds of pigs that are farmed are Large White, Landrace and the Duroc.
The pig family
Male pigs are called boars. The females are called sows and the babies are called piglets.
Names for a group of pigs: a drift, team or herd of pigs.
When a group is being moved they are a drove of pigs.
A group of young ones is a litter or a farrow of piglets.
A group of wild pigs is a sounder of wild pigs or a passel of hogs.

Food for pigs and pig diets
Farmers feed pigs on grains such as corn, wheat, oats or barley. Farm pigs are also fed greens and dried food made from meat, and some vitamins and minerals.

A home for a pig
A home for a pig must keep the pig dry and warm in winter, and cool in summer.
A home for a pig must be strong and well built. A piglet will be able to squeeze through any small openings in walls or fences and escape. Big pigs are very strong and can dig under fences and can even break down a poorly built house. Bricks and concrete are often used to build a house for a pig. A house of bricks or concrete is strong and can be kept clean. Farmers put straw on the floor of a pig's house to make it comfortable for the animals.

More about pigs and food for pigs