Does anyone have a recommended goat mineral that has all the right stuff in it such as copper, selenium, balance of calcium and phosphorus, etc... I use New Country Organics and JUST realized that it has no selenium that I could see. I like the copper and balance of calcium/phosphorus. I use the selenium/vit E gel monthly, but I don't think that's enough. Also, how much selenium are they REALLY getting with 4ml once a month? The tube says 1 ppm - I must be reading that wrong or something.