Stabilized rice bran. Start out slow - 1/2 lb per feeding and after a few days bump it up a little until you get to 1 lb a feeding - assuming you feed 2 x day. I know people feed more than that, but that's as high as I've ever gone. Watch so the calf doesn't get too loose. If it does, back off a little for a few days, and then build up again slowly. I've never had any problems in the past. Puts on a nice smooth fat layer fairly quickly. When's your target show?