That's pretty much what I do. Mine have hay out all the time and they still getting brows while we have it. None of mine are not getting grain right now as I am not milking and don't have any young ones. But that is about the amount I feed when I do have. Mine go bananas over alfalfa pellets so I feed that when I need to motivate them to go to a particular area...like back to their pen. If they see me with a white bucket they pretty much go nuts... even their water buckets..at leas until I put them in the pen and they get to investigate and find out its not food.