It really depends on a number of factors, such as where you're going to board, what you're going to feed, if you're going to be riding it, buying it tack, things like that. I have read in horse care books that the annual cost added up for one horse is $3000. This includes boarding, feed, averages in vet bills, farrier bills, vaccinations, dewormers, unexpected costs, and such. this amount did not even include things like saddles, bridles, blankets, cost of trailer, cost of hauling, and things like that.
nothing they cost you a lot of money to feed and keep
You should feed your horse 12 to 15 pounds.
The age of a horse is important when determining how much to feed it. Horses that are growing need more nutrition than a horse who is not growing or working. Horses who are working hard, breeding, or are in foal or lactating also need more feed. Sometimes very old horses require more feed to keep them healthy because their bodies aren't as efficient at using what they are eating.
Sweet feed, sweet feed, sweet feed
Feeding a horse beet pulp can vary from horse to horse. Depending on if you have others in with them or how much you horse takes in daily. For me its usually 1 and a half scoops but again it varies. That is a question for your local feed store or your local vet.
It depends on the horse. If your horse is fat then you need to cut down on the horse feed, but if your horse is too skinny then you need to increase their feed until the horse gets back up to his/her weight.
It depends on how much the horse is ridden, and whether or not the horse lives in a pasture, stall, or has limited turn-out.
how big is the animal??
you should probably be feeding your horse grain instead of liquids
egg
It depends on the type of horse feed. However, a general rule of thumb is that 1 quart of horse feed weighs approximately 1.25 pounds. So, 8 quarts of horse feed would weigh around 10 pounds.
It depends on the horse. Ask your vet to see what's right for your horse(s).