What is the appropriate age for a breeding boar's first mating?

The development of sexual function in boars is divided into two stages: puberty and sexual maturity. Before sexual maturity, there is already some sexual behavior, and even mounting actions, but it is still different from truly typical sexual behavior. Often there is no ejaculation or no formed sperm in the semen. Some customers, seeing that a boar will mount, let it mate, which is absolutely inadvisable. The appropriate first mating age: for improved breeding boars raised abroad, the suitable period for Duroc, Landrace and Yorkshire boars to enter service should be at 8 months of age, starting mating when body weight reaches over 120 kg. However, breeding boars should also not be used too late; it must be economically worthwhile.