I puchased a poly/copper & a poly copper/zinc (separate) to supplement from a major horsehealth on-line company it had an MSDS statement inside that gave caution in use. I was too afraid to use it after reading the warnings. Is it safe to feed when fed mixed in with a concentrated feed? If so is it better to add some warm water to prevent them from inhaling any dust particulates? Sorry for my ignorance but it's better to be safe.
