I'm telling you the best way to get them out of being broody is to hose them down. No need for ice. Just get them soaking wet. I hosed my broody hen down once and that was 2 weeks ago or more. She has not gone broody again and was laying eggs about 4 days after I hosed her down. I mean it was immediate. Snapped her right out of it. She is happy and healthy and glad to be out of that hot nesting box. (I'm in Fl).