We have been hatching eggs since August with good success and only a few babies that didn't make it. We breed Rhode Island Reds and Barred Rocks primarily. In the past 2 weeks, we have hatched probably 40 Rhode Island Reds and have lost 10 or more of them. We have not lost any Barred Rocks. We are not doing anything different and can't figure out why we are losing these chicks. We have about 20 chicks in one brooder and 25 in another. Our brooders are 6 feet long with a lamp at one end so that the chicks can get away from the lamp. We always clean out our brooders with bleach water. The chicks are fed medicated feed and electrolytes and vitamins are in their water. Pine shavings on the floor of the brooder. I religiously go down there to the brood room just about every 2 hours to make sure there are no shavings in the water, etc. If we were losing Barred Rocks too, it would make more sense but we have not lost any BR's. Does anyone have any ideas? HELP!!!!