Ok...here's a question that may sound silly but I seriously do not know. I want to begin my maiden voyage into the land of Batorville with my own home laid eggs. It is cold here. I collect eggs in the evenings, and the eggs get cold...sometimes down to freezing. Question...What is the lowest temp an egg can get to and remain hatchable? You chicken folk are far more full of knowledge than anyone I know.
If an egg gets frozen it is unlikely to develop.
I have 3 dozen trader joes eggs developing in the bator now. They had probably sat in a chilled room/cabinet at 4 degrees c for at least a week (maybe 2 ) before being set.
2/3 started developing. Down to half now - but drop off likley due to egg age at setting (and maybe having been chilled).