Raising Animals in Minecraft

I discovered that you can tame a horse by feeding it wheat or golden apples.  If you right click on the horse, you can ride it, but you will only be able to control it with the use of a saddle.  Luckily, I found a saddle in a mine, allowing me to ride two different horses back to my animal farm.  I also figured out how change the color of sheep, to harvest colored wool.

I have cows, chickens, and horses on my farm. Feeding the cows and chickens led to the arrival of baby animals, but I haven't had luck breeding the horses.