It depends on what kind of goats she has. If she has wethers (castrated male goats) than I wouldn't feed ANY grain unless they are still young and need to grow. And if you do feed them grain, make sure it has amonium chloride in it. Goats are very suspectable to UC (unrinary calculi) which is almost always deadly. All wethers and nonproducing goats need is good quality hay and maybe a handfull a day of grain. I would stay away from the soybean meal. Soy is not good for goats.
You can usually find a decent goat mix feed at your elevator or feed store (don't get a sweet feed for all kinds of livestock) Make sure you get a goat feed that contains amonium chloride (look in the ingredients).
They also need access to a mineral of some sort (not for sheep or a sheep and goat mix mineral because sheep can't tolerate copper at all, where goats need some copper). Your regular cattle mineral should be fine.
They can't stay outside in all kinds of weather like cattle. They need a dry, draft free shelter, or you will be constantly dealing with pneumonia. A fairly deep 3 sided shelter facing the south or east shoud work, or a calf hutch.
If they are does (females) that you are wanting to breed, they will need quite a bit more attention. They will need grain (they don't get UC) so you can give them grain. Again, stay away from soy products and a lot of corn. A little corn goes a long way in goats, they founder easily on it.
Kent goat feeds sells a really great, cheap all around goat feed. It's called 16% Goat feed. It's just a pelleted feed, but they grown well on it. If your does are milking, you will need a dairy pellet suppliment. We use dairy provider 38% from Kent.
Hope that helps you out some. If you need more info, please feel free to email me. I raise Nubian dairy goats for show professionally.
Good Luck
