I have quail eggs hatching in the bator right now. Two have hatched so far and the both have feet issues. The first to hatch has a slightly curled toe on each foot and the second has some bent toes and one bad foot. I have heard all of the reasons for bad hatches like this, but I have never heard anyone say it was because the eggs were old. Some of the eggs I set were over the one week mark and I was wondering if this could be why they have deformities. I had this same issue with my last hatch and I had some eggs that were old then. I had about thirteen hatch and all but one died, even though many were able to straighten their feet out after hatching. Has anyone else ever had issues out of old eggs like this? I feed my quail a premium diet. Some of my quail are from the same hatches and are related, but I don't believe it is genetics. It could be a possibility, but I have more eggs due to hatch next week that were set pretty fresh. If I still have issues after that I may rule out the old egg theory and move my quail into seperate breeding pens and introduce some new males.