Originally posted by rexpiscator:

My 2-* Boar farm needs no 'platforms' for them to eat and breed...open dirt surrounded by the cheapo fencing is fine.

dirt counts as a platform animals can stand on too, duh.
what i meant: the animals shouldn't float in the air (in old versions of spawners you use 1x2m planc and put all your animals on it. (ideally you rise it ~8m above the ground)