I am very new to raising chickens and seem to be having some issues. I have lost 8 juvenile birds over the last month and am noticing that some of my hens are loosing their body feathers all the way down to the skin. Wing and tail feathers are fine but the under feathers are gone. Also I have tried everything from spraying diluted bleach around their pens,making sure their water buckets are very clean they have been wormed, given antibiotics and electrolites. I am trying everything I can to take good care of them and dont understand why I have lost so many. Another issue is that I got a few grown hens a few weeks ago and have yet to recieve any eggs from them. They are being fed layer crumbles, along with some high protien game scratch and the babies are still on chick starter. Thanks for your help in advance would appreciate insight and comments very much!!