I see we're being pretty liberal with the word "factory farm" here.

A decent chunk of the animals represented here are cows in pastures. If you ever drive through Iowa you'll see dozens of them sun bathing on a hillside several times per mile.

Turns out if you don't let them chill comfortably they get pretty pissy, and at roughly 1000 pounds, one pissy cow is a problem. Half again more so for a bull. Imagine a herd of pissed off 1000 pound animals in a barn, and you'll see why "factory farms" are generally just large pastures of lots of cows. Kinda the same for the pigs.

A lot of these though are chickens, which, I mean yeah it's as bad as it sounds when we're talking about chickens.