These three yards hold, from where I was standing, Visayan Warty Pigs (the partially visible yard at the front of the photo), Warthogs and Red River Hogs. Any domestic pigs are in the Muddy Duck Farm, although I have not seen any on my last few visits - maybe because if there are any they are on the other side of the tractor ride. There is an animatronic sow and piglets though! I wish the zoo still had Collared Peccaries.
There is a fourth exhibit in this block. Next to the Red River Hogs, it is for Banded Mongooses. The third shed (for want of a better description) on the photo being their indoor accommodation.