Genetic traits affecting hatching?

[brucieboy]

Your right, looking back I see what you mean. However is it possible any of the 3 combos in the mix could have a PO-2 gene? (Responsible for leg deformities?) if so could this explain why there were so many not able to make it out of the shell?
The website lists so many different genes, and to tell you the truth, it's very confusing.
I am just trying to help, but I see where I probably need to study what breeds typically have certain genes!!
Out of the six that actually hatched and are still living, are there any abnormalities?

The one abnormality is that extra toe and it is a weird one in that the position of the toe comes high out of the side of its foot, so non-functional. Otherwise they are perfectly ok looking chicks.