I have a herd of 5 boer nannies on about 5 acres and am needing to bring 2 miniature horses to the property. They will share the same pasture but I have separate shelters that have smaller pens around them so that I can keep them separated for short periods of time if necessary. I plan to feed the two groups separately in their respective shelters when winter comes and the pasture is no longer enough to support them, but for now they all will have free access to the pasture. I am curious about minerals. My goats get Manna Pro loose minerals that are in a feeder inside their shelter. Will those hurt the horses if they eat them? What about a salt/mineral block for the horses? Is there a certain type that would be better if the goats are able to access it? I am hoping that the two groups will mostly stay out of each other's shelters when the gates are open, but especially the goats are really curious so I want to make sure whatever I do is ok.