Okay, final results are four live chicks. I assisted three of those. Late day 22 I just had a bad, bad feeling after two out of eight had side pips and the first one died. The last few days I had a hard time keeping temps stable. The humidity SAID it was plenty high, but I really question the accuracy after what happened.
Anyway, late on day 22 I decided to check an egg that had been internally pipped and moving for the better part of a day. Nothing,no movement. Opened the aircell and the little guy was shrink wrapped and dead. The egg that had an external pip was now only peeping weakly...decided to intervene and upon opening his pip a little more saw he was also drying out. I used mineral oil to moisten the membrane, and gently moved the membrane from his nostrils. After a couple minutes he started peeping with more vigor.
I decided to check a couple of eggs that I expected to hatch first, based on candling at lockdown - the aircells had started to shift when I taped up the bator lid to keep humidity in. Both gone. So at this point I said screw it and candled and opened aircells on the rest. Found two more that was still alive. One hadn't pipped internally so I cleared it's nostrils and it started peeping after a minute or so. So I had two pipped into aircells and stuck, and one side pip.
I worked mineral oil into the membrane and rotated around the four. There were blood vessels visible and I worked mineral oil to the edges of the shell as I went. The little chick that hadn't pipped was doing great, but I made a grave mistake and let them all get too cold. I had set up heat lamp, but I was worried it was too hot, etc....ack...that little chick did die. After she was gone and I removed her from the shell I saw her yolk fully absorbed and everything. I moved the heat lamp closer for the rest, figured if my hands weren't burning, neither were they!
After that I was a little more aggressive with the other two that had internally pipped. Freed head and shoulders slowly, eventually leaving them in the bottom half of their shell to kick out when they could. The side pip chick was super tricky, she had a blood vessel right between where she had pipped and the aircell...just was patient until the vessel dried up and I could clear her head.
The thee made it and so far they are all doing well. Little extra wobbly on their feet, but now they are all drinking and getting around fine. Of the chicks that didn't hatch, one was a wrong side pip that died before I decided to intervene. Three were positioned correctly with yolk sacs partially absorbed, and one fully absorbed (and internally pipped), one was completely backwards, head in the small end.
I know assisting is controversial, but the hatch went bad because of my equipment design failure. I'm glad I helped. I feel bad I didn't check one of the eggs that had the obvious slanted aircell earlier, but I was taking the hands off and let them do what they do approach. I am extremely happy to end up with four live chicks from a little styrofoam seafood shipping box that was thrown together macgyver style. We will try again next year, with calibrated t-stats and humidity sensors (unless I have four little roos here).
Sorry so long!! Wasn't sure I should share, but that's my story and learning experience. If you take anything from this it should be to calibrate your equipment and have redundancy...I feel stupid for not at least getting a second hygrometer in there over the course of three weeks! It never took much to raise the humidity...it was a small space, but I should have suspected something was up.
wow, thanks for sharing. some of this sounds eerily similar to what I've just been through. I'm on day 22 with 2 side pips and 6 eggs without any external pip. one air cell is way off to the side of the egg, not in the top at all, probably malpositioned and the first one I would assist if I chose to intervene..
in conclusion, you think your humidity was too high, or too low? (due to faulty equipment)
what I can't reconcile is that mine has been dead on the whole time.