Pork is the most commonly consumed meat worldwide. As with other domesticated farm animals, there is a set of terms used to describe pigs to identify factors like gender, age and stage of production.
In the United States, a young female pig at least six months of age that has had no more than one litter of piglets is commonly known as a "gilt." In some regions of the world, the term describes those that have had no litters.
Adult female pigs that have had two or more litters of piglets are known as "sows." When a pig gives birth, it is known as "farrowing." On average, sows are pregnant for 114 to 115 days.
Domesticated male pigs that are castrated are known as "barrows," while those that are not castrated are called "boars." Wild pigs of either gender are commonly referred to as boars or wild boars.
Baby pigs still suckling milk are referred to as "piglets" or simply "pigs." Once weaned, they are known as "weaners" or "weanlings" until they reach a weight of 18.1kg.
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