Still no pips in the last 8 eggs. Very disappointing if we only get 7 out of 27 eggs! Not a very good hatch rate for local eggs.
My morning temps averaged 100.2, my afternoon temps 99.6, and my evening temps were 99.9. I had a standard deviation of 1deg over all temps. There was a spike of 102.4 on day 8 and a low of 98.1 on day 12. The humidity averaged 21 in the mornings, 30.7 in the afternoon and 32.2 in the evenings (before lockdown of course, then it was between 52-61%). I'm reading my temp from an egg filled with water placed in one of the cartons. I calibrated my temp twice. Both times it read less than a degree high.
My air cells look good. I saw movement in some of the eggs on day 18 that still haven't pipped. Fingers crossed more hatch or at least pip tonight!![]()
If they don't, I need to figure out what to do differently. Any ideas? I've got my next batch of eggs ready.
Oh, I don't think I mentioned that 1 fan died around day 10 and the second one around day 14. I have a replacement ready to go.
I think maybe I'll tape the window down to seal off the edges so heat doesn't get lost. Maybe my temps are fluctuating too much? I read a late death usually means humidity isn't right. Either too high and the chick drowns on pipping or too low and the chick is saran wrapped. I think my humidity is good. Actually I just remembered that it is 7% higher than what I was reading according to my calibration. So the averages would really by 28, 37, and 39 <lockdown and 56-68 after. Is 68 too high? It was only up that high twice.
I'm leaning more towards fluctuating temps or maybe a late hatch due to low temps. Who knows! I know they were all developing and looked good at lock down. Argh!
After reading more I think my problem may be not enough ventilation. Especially since both fans eventually died. Before setting the next eggs I'm going to drill some more ventilation holes and put a couple closer to the fans. It also said hot and cold spots will produce an uneven hatch. That could've happened once the fans went out. I tried to rotate the eggs front to back after candling but I didn't do middle to outside. Maybe I should do that next time too.