i think you should feed it yogurt bites. they are rich in minerals .
A lot of times you can get what's called a mineral block. They are sold in almost all feed stores. You can buy a large one, to put in a paddock or pasture. You can also buy a small on, to put on the wall of a horse stall.
You buy minerals and add it to the feed, or you get a red(mineral) salt lick that is always accesible to a horse.
There are vitamins that you can add to their feed. You can purchase these vitamin additives at your local feed store. Also, make sure your horse has free access to a trace mineral salt block.
give them a mineral block or feed them a vet recommended supplement.
You can give the horse a mineral block to lick. These are sold in feed stores and come in many varieties and sizes.
The easiest way is to provide a mineral salt block free choice for your horse to lick. These can be purchased from any reputable farm supply store or horse feed store.
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Give them a salt lick, or as a vet/feed store about supplements.
Howrse answer.Provide mineral block AND feed veterinary recommended supplimentsCheck out mine, SaddleSitter
You can purchase a mineral block. They are for sale at feed stores. They come in various sizes. The horse can lick the block and it helps to cure boredom too.
Salt lick, you can get a mineral , or salt, lick at you feed store.
Horses need a certain amount of minerals. Ask your vet which type of horse feed is best for your horse. here's the types of vitamins and minerals a horse needs: http://alpharmaequine.com/info-vitamin-mineral.html and here's more about horse's energy: http://alpharmaequine.com/info-vitamin-mineral.html