Very interesting stuff. Can't wait to see if it is true. I might try incubating my own eggs for the first time ever! Maybe I can get an accurate reading and know before the chicks are born.![]()
If you want to know if it works, but make it simpler to manage: test each egg, and only incubate the ones that should be females. Then see if you get chicks that really are all females.
Or you could do all males--as long as you do only one gender, you don't have to keep each egg separate at hatching time, and you don't have to track individual chicks until they're old enough to show gender. (Sexlinks would also remove the chick-marking part of the experiment, because you could be sure of gender at day-old.)
Two incubators and two brooders would also work--all male eggs go in one incubator, all females in the other, each set of chicks moves to the appropriate brooder, you check accuracy when they're old enough to tell.