Just trying to supplement their normal diet. I'd like to see some larger antlers. My property is located in a county that is hilly and rocky. There's not a lot of soil that's good enough to grow food plots, so the deer are primarily eating mast from the forest for their whole diet. I've got a lot of deer, but they never seem to get very big, just kind of "scraggly" or what some people call "scrub bucks". I've been supplementing with corn and protein pellets in three different feeders and they seem to love that, but from what I've read, calcium, magnesium, and phosphorus are the major minerals found in antlers, so it makes sense to me that if a deer isn't getting enough of these minerals in their diet, they likely aren't growing antlers to their full potential. Or at least bigger than what they are currently growing.
I'm not looking for a "magic bullet" or anything of the sort. I'm just looking for the best bang for your buck in terms of supplements that I can start providing. I can't really do anything about food plots and I'm already feeding corn and protein pellets through three different feeders, two gravity-fed free feeders and one timer feeder.