I have 2 cows, 3 sheep, and 3 1/2 goats (one 3 month old) running together on the same acreage. Goat feed has too much copper for sheep, so now I just feed a 12% ( general)grain mix if I want to give them a treat and I have a mixed species pasture mineral, free choice that everyone can have. It's sooooo much easier than having separate rations for everyone. The cows just get grass (they're Dexters), and the sheep get 99% grass. The goats graze and browse the woods at the edge of the pasture. So far so good! karla
p.s. I'm going to run my hens behind them to break up the fly cycle, and next year I'll rotate them through the pasture to help break up the parasite cycles.