What are some clever ways to correct pigs' bad habits?

Pen-breaking: Trim the upper eyelashes of a pig that breaks out of its pen short, and trim them again once they grow long. This way, when the pig raises its head to break out, its eyes will be irritated by wind, light and dust, creating a sense of fear, and after several times, the pig will no longer break out.

Wall-chewing: Pigs chew walls often because of insufficient salt intake. Generally, the salt content in the diet of 60-90 kg fattening pigs should reach 0.25%, and the salt content in the diet of breeding boars should reach 0.35%.

Biting fights: When pigs from different pens are kept together in the same pen, biting fights often occur. If the pigs originally in the pen are first driven out of the pen, the pen is sprayed with baijiu, and the pigs' bodies are also sprayed with the same baijiu, and then they are driven back into the pen, biting fights will no longer occur.

Chick-eating: For pigs that often eat chicks and ducklings, a small pinch of chicken feathers can be roasted to a brown color, ground into fine powder, then placed in a paper tube and blown into the pig's nostrils. After that, when the pig sees chicks, ducklings and other young birds again, it will "retreat three she" (beat a hasty retreat).