A lot of it under the form of crop subsidies:

> This land, and other targeted subsidies for livestock, is worth between €28-€32bn (£24-£27.9bn) in CAP direct payments per year for the animal farming sector, 18-20% of the EU’s total budget.

That seems like pretty heavy subsidizing to me, although in the US I have the impression that things are worse.

I think a lot of the europeans perception of the livestock industry comes from advertising, all those pictures on the supermarket of happy farmers next to happy cows and pigs, I think that's where a lot of it comes from.