You really should start when the horse is around 4 years old, because their back hasn't finished developing yet so if you do it for example when they are 2 there back will grow beant and it can be painful for them...
If your mare is in good health and had an easy, normal delivery, you can start with some light riding at about three weeks to a month.
There are zebra foals and pony foals, so yes.
Foals
The most general answer for the foals born to a mare or stallion are as follows. Dam: is the word for a mare or female horse producing foals. The foals she produces are called her "produce". Sire: is the word for a stallion or male horse who has bred mares. The foals produced by a stallion are call his "get". (The stallion "gets" the mares in foal so the foals produced by him are his "get".)
No..
not if ride for a long time
Horses will keep there foals for three years in the wild and 9 months in captivity
20-25mins
No. It isn't possible. A horse can only have up to two foals and if that happens it is rare that one of them survive and even rarer if both survive.
Yes, but pasteurized cow's milk is not ideally suited for horse foals. There are products on the market designed for foals or there are recipes to enhance goat's or cow's milk to increase it's suitability for foals.
A baby horse is a foal. Foals grow to become adult horses.
I have heard 6 months
The way to get foals on Farmville, is to, you have to have full grown horses, to put in your horse stables, if you have horses in your stables, you can have chances of having foals. Another way to get foals is to check out your farmville friends profile pages.