Ok, well the eggs I am hatching are Australorps (as always) and are now on day 22. During candling most of them looked great but a couple didn't seem to be developing at the same rate which I thought was weird seeing as they were in a fan forced Hovabator incubator, shouldn't be any hot and/or cold spots. I switched them to my hatcher incubator on day 19. Candling showed 2-3 had piped into the air cell. Day 20 morning there were 2 pips, that night I had to put another egg in so quickly held the torch over some eggs about 4 had piped into the air cell. Day 21 late that night one hatched but only zipped about a third and just pushed until the shell broke, unsurprisingly it couldn't get out so I pulled the top off for it. While I had the incubator lid levered up I quickly held a torch over the other eggs to see what was happening, at least 9 had piped into the air cell and were moving. This morning, day 22 NOTHING. the other piped egg still hasn't hatched yet either, it's been over 48 hours. So from whoever is reading this experience is this hatch doomed? What caused this? I have a Hovabator with an auto turner. Another strange is that the chick the did hatch also has a deformity, on the bend of it's wing there is a tiny toe on both sides. It also had a fair bit of blood in the egg and on it's abdomen after hatching. Is genetics the cause for the bad hatch? I have hatch lots and lot of chicks with the same rooster with the same hen and they turned out fine. My last hatch though was a bit strange too, the chicks all hatched over two days even though they were put in the incubator at the same time, which made me think it was the incubator. Any help would be appreciated. I am typing this on my phone so all pronunciation and spelling has gone out the window. I'll fix it up when I get on a computer later.