Do they have passports? Like how do they know if the pig is danish or German?
I think many are tagged, but otherwise they have a lot of surveillance and fences. They probably track them after breeches as well. The point is to control disease.
alt Hacker News
I think many are tagged, but otherwise they have a lot of surveillance and fences. They probably track them after breeches as well. The point is to control disease.