This is the 4th chicken that is exibiting the same symptoms. "Out to lunch" dememour (sp?) . Does not run out with the rest of the flock. Stops (almost) eating. Poo is a lemon yellow and sometimes spinich green. Did a fecal float under microscope ~ found NOTHING. Were on starter feed for coccidisos. Treated for coccidisos 3 weeks ago ~ whole flock. Chicken is 7mo. old. This bird was NOT treated for Mericks do not know about others. I think ? ? ? they were. Any ideas PLEASE. Do not want to lose this big R. C.R.I.R. THNAKS !