I buy bull holstein calves from a farmer right after he weans them. I start them on an 18% textured calf feed. Then I slowly switch them over to ground corn,16.2% pellet and a little hay. My problem is, once I get them switched over to ground corn they eat it good for a couple of days, then they back way off eating. Then to try to get them to eat something I just give them all pellets, then they will clean their feeder for about a day and a half, then they will back way off feed again. At that point I start mixing a little ground corn in again, and then they eat a tad better. I've never had this problem before. Is there something better I could be feeding them? I need them to gain weight as fast as they can, and ship them out. I normally take them up to 325 pounds before I ship. I just started this, and going to be doing roughly 400 a year. I have been farming all my life, so i'm not a complete idiot