I had been feeding my pullets medicated chick feed mixed with 20% to try and wean them off easy. Well I had poured the bag of Med feed into a metal bucket to keep the mice out which I always seal the lid on and it got warm. Well I opened the lid without thinking and fed them it for 2 days after that. Come to find out today it had an odor of kinda metallike fishy but didn’t look off. I trashed it but had already fed them some of it. Was there anything potentially harmful that will hurt my birds or does that just occur when it gets hot. I know botulism comes from decaying food as well as other problems.