We bought 6 new-born baby chicks - 2 Plymouth Rocks, 2 Partridge Cochins, and 2 Sultans all pullets on 09/08/10. We lost 1 of our Sultans yesterday, and really need some suggestions on how to insure that we don't lose any more. I raised 9 chicks (rhode islands, plymouth rocks, and leghorns) 2 years ago and had no problems with them but for some reason these new 1's seem to be different. We were told to put them on an antibiotic treatment and electrolytes (gatorade in water). How long should we keep them on this treatment?