ImAwesome wrote:how much space do you need between bull pen and cow pen to stop breeding? mine share a fence, and I just found out accidently thats not enough to stop it...
If they are physically seperated they cannot mate. But if there is any gap, even if it's one they would not otherwise pathfind through, it's possible they will mate (if such a gap exists they can do the fence-jump effect to mate).
With a roundpole fence, it might be possible that an animal can be partially in the same tile as the fence, and with another one on the other side being partially in the same tile, it's possible that it detects them as being close enough.
Edit: Cellar stones are probably the best type of pen material, along with troughs. Floating roundpole fence gates are good for walking in carrying a full trough, but leading animals through roundpole fence gates is a pain, especially when you have several small pens in an area. A gap from a temporarily moved cellar stone is something animals can easily pathfind through.
Hearthlings: Marona; Chamberlain (retainer alt), Vincavec (shaman of the Dryad Wells Forest)