I have a few head of cattle and they are mixed cows and heifers. I am feeding alfalfa/grass hay now and they are indecent shape. But I would like to also feed like to feed some grain after they give birth for a couple of reasons. 1- to help the heifers continue to grow 2nd to help the cows and heifers to bounce back a little quicker to rebreed. I live in northwest ohio. So what ration should I have mixed in your opinion?