I beg to differ - it has basically become the norm for pigs. It didn't used to be, but it has become so.

I grew up in Indiana. Now, I've not lived there in 5 years, but I did live quite some time in a place that pigs outnumbered people in the county. The county seat was 3000. Even smelling pigs was becoming a rarity while out on a country drive and a flood meant that thousands of pigs drowned in a flooded barn ("pig factory").

Perhaps you are in a place where the pigs usually roam free, but I certainly wasn't.

Hogs are not a very common livestock animal in my area, so I have no knowledge of their conditions. I do know that sows are commonly caged separately from their piglets to avoid the mother accidentally rolling over and crushing them while they nurse, but that's about it.

According to the ASPCA, over 95% of farm animals in the U.S. are raised in factory farms[0]:

[0] https://www.aspca.org/animal-cruelty/farm-animal-welfare

According to Dr. Hershaft, a holocaust survivor which has dedicated his life to researching animal rights, it is estimated that less than 1% of the meat in the US are from smallscale family farms, he and his team did an AMA on Reddit: https://www.reddit.com/r/IAmA/comments/2h8df0/i_am_an_80year...

According to the ASPCA:

> A factory farm is a large, industrial operation that raises large numbers of animals for food.

That's an _extremely_ broad definition that says nothing about the condition of the animals.

On top of this, that percentage is most likely due the sheer volume of chickens in the world. From what I remember there's something like 750 million head of cattle in the world, and like 18 billion chickens. This doesn't make up for the awful treatment of poultry, but it doesn't really extrapolate to animals like cattle and sheep.