My husband and I purchased 14 chickens that were hatched on 7/28/16 on 8/22/16 and 13- 4 day old chicks hatched on 8/18/16 on 8/22/16 from the same person. Over the course of the last 3 weeks we have lost 5 that were hatched on 7/28/16 and 6 that were hatched on 8/22/16. All purchased from the same person. None of the rest of the flock of youngsters have seem to been infected with whatever this is.We do not have a chicken vet around here and our dog vet said that the symptoms sounded like a problem in their digestive track. They are eating as much as they can, drinking as much as they want but they are skin and bones. They become very lethargic and withing 12 hours of the lethargy setting in they are having bloody diarrhea and they are dead. We have been told that Duramyiacin-10 would be able to help with this. One spoonful in a gallon of water and it will treat all the birds. The ones infected and the ones that are in the same area so they won't develop any problems. I know a lot of you out there say don't medicate with out knowing what it is.... problem is is no one will see my girls and it is killing me to see them suffer. I don't want this to spread through the entire flock so I am asking for any advice possible. In the full sized chicken coop I am planning on starting to put oregano oil in their water. Does anyone have the dose amount for a gallon of water? I want to do things as organically as possible but I gotta stop the birds from dying. Are there any other tips I can use to keep my flock healthy? All comments welcome HELP!!!!!