In swine terminology, what is an uncastrated male pig called?

An uncastrated male pig is called a boar. This term specifically refers to male pigs that have not undergone castration, allowing them to retain their full reproductive abilities, including the ability to breed. Boars are often used in breeding programs due to their genetic qualities and are a significant part of pork production and genetics.

The other terms provided have specific meanings that differentiate them from a boar. A barrow refers to a male pig that has been castrated before reaching maturity, making them less aggressive and easier to manage. A gilt is a young female pig that has not yet given birth, and a sow is a mature female pig that has produced at least one litter. Understanding these classifications is important in animal husbandry for breeding management and herd health.