Any body use Purina 4t fyer? We have two heifers that we feed a home mix of 1200 corn, 400 steam flaked oats, 200 cotton hulls, and 1.5 # protein/day. They are eating about 17#/head /day and they look fine but they are good heifers and I would like to switch to a better feed. Any help or ideas would be great. Thanks