I hatched out 5 black coppers and are about 3 weeks old.I been feeding them Dumor chick starter/grower 20%. Now the last few days has been a battle and my chicks went from OK to not moving to acting drunk laying over on their side not eating or drinking.Come to find out someone on this board told me to try poly-vi-sol vitamins and I also changed the feed out.The vitamins perked up the chicks right away and now eating like little pigs. 4 out of 5 are back up almost to normal.My only little rooster may be to bad off to make it.OK here is the deal I only used this Dumor feed for these chicks only and how can it be the feed be vitamins deficiency.I called the company and they said they will call me back.Has this happened to anyone else and what should I do about it?I am very mad to think The feed was what was going to kill my chicks.I would really like to have some feed back on this.