Instructions
Preperation
Build a stable by collecting the resources required (10 bricks, 10 harnesses, 10 horseshoes, 10 nails and 10 wooden boards) from your Facebook friends. Without a stable, you'll be unable to breed horses.
Obtain as many brown, gray and black mares as you can from your friends by asking them to send you one, or by clicking on one of the FarmVille posts on their Facebook walls that offers a horse. The more mares you have, the quicker you can breed horses.
Obtain one special horse. It can be anything from a "Pink Haired Pony" to a "Black Stallion," just have at least one.
Obtain either a "White Stallion" or a "Mini Stallion." You can also use a "Wandering Stallion," but then you'll have to keep a vigilant eye on your friends' walls to find one.
Stable Rotation
Check that your stable is empty and that the horses waiting outside are at 34 percent readiness.
Select the "Move" tool. Move one of your seed horses into the stable.
Move your special horse into the same stable.
Move your stud into the stable.
Select the "Multitool." Click on the stable. Wait until a dialog box appears announcing that you have either a foal, gold or experience.
Empty your stable, then repeat this process to breed as many foals as you want.