I just took a few minutes to read over some materials on this egg topic. Lots of interesting stuff for sure. Some of which is way to much for me to understand. Lots of commercial info which is an obvious thing.
In reading several studies I seen a few things I knew and more that I didn't.
I read an article from PA department of wildlife and a page from Georgia department of Wildlife. Like I said, some interesting stuff, but I didn't see where the sperm was now decided to be dead in less than time previously stated.
I did see talk of multiple breedings showing better hatches. I also read studies that shown multiple A.I. of commercial hens not effecting hatches to the better, and the opposite as well.
Left me undecided, I guess an extra breeding or two couldn't hurt. But is it necessary?