What to feed growing foals- Part 3-the minerals.

Are my foals getting enough minerals in their diets? What of these new studies that say that foals and broodmare can really benefit from more Copper? Are my animals getting enough to ensure they have a long sound life ahead of them? Like any breeder and foal raiser, I ask myself those questions pretty regularly. We want the best start in life for our foals and I find myself pretty bewildered at the wide array of feed and supplements out there being offered and touted as the best solution to this niggling worry. But when I go looking for actual data on what foals actually need I am...