You horse has to be 2 years and 6 months.
Howrse.com is a site where you can breed your own horses and sell them.
You can't - it's irreversible
on your horse's page press feed and select the amount that your horse needs then press feed again
There is actually an average for how old a horse is for each breed (because the life span for each breed is different) but I breed Arabians and we had an old mare, she lived to be 34. Sounds ancient, I know!
When you pasture your horse overnight he wakes with replenished energy and morale.
About 3 years old
About 2 and a half years old. (on average)
it depends on its breed and how old it is
At 2-3 years of age a horse will reach sexual maturity, thus able to breed.
You buy one in an auction or a trade in the "Trade" tab.
Answer for Howrse: An infection of a part of the horse's hoof called the Frog
That depends on the breed of the horse for e.g. A Lipizzaner can live up to and over 30 years old and still perform. Every breed has a different life span.