I appreciate the advice. That saved alot of time. We move all the movable pens 2times a week or more depending on weather. I will bleach all waters for a whileIf everything is reasonably clean and kept up I wouldn’t move a single thing. I’d just cull every bird with symptoms and only breed birds that have never shown symptoms and seem to thrive. There’s no guarantee it doesn’t show in birds bred out of birds that showed no symptoms but it’s really the only option aside from culling everything.