I hope someone can provide some advice for me. I have been using the incubation and hatching guide as a reference, but have never hatched goose eggs before. As background, I have hatched both chicken and duck eggs that were shipped in the past. I had success with the chicken eggs. The duck eggs were another story. Of the five who made it to lock down, only one pipped externally and hatched. I hadn't read the hatching guide yet and didn't assist any of them. I just didn't have the heart to open up the eggs and see what went wrong. However, I am sure that the humidity was too high and they didn't lose enough fluid. I also feel that I should have made an air hole for the ones that never pipped externally.
Right now, I have 4 American Buff and 2 American Blue in the incubator on day 26. These were shipped eggs. I am using a forced air incubator and have tried to keep humidity around 25-30% to ensure proper weight loss. Two have very uneven air cells. I have placed them with the overall lowest side up. Two have really good looking air cells with an obvious dip that made it easy to place them correctly for hatching. Two have flatter air cells with a dip that is not as deep as the others. My light for candling is not the best, but when I candled last night at midnight I saw a little movement at the edge of the air cell on two of the eggs as if they were pushing at the membrane (one had the really good aircell, the other was flatter). This morning when I checked around 7 am, there was no movement.
I was planning on waiting until they had definitely pipped externally before increasing the humidity, but I am worried that they have pipped internally and will pip externally today while I am at work and then not have enough humidity to hatch. I will be gone for at least ten hours, so I added enough water to raise the humidity to 50% ish just in case. If they have not pipped when I get home, I will let the humidity drop and keep a close watch. So . . .
What are the chances that they have pipped on day 27 and will hatch today? Should I have increased the humidity more?
How long should I wait after seeing the shadows that indicate internal pipping to make an air hole? Did I mess up by not doing that this morning on the two that I saw movement on last night? and should I make an air hole on those two when I get home if they have not pipped externally yet?
Could incubation go longer than 28 or 30 days?
With the two that have wonky air cells, it may be hard for me to see the shadows that indicate internal pipping. Absent any sound or movement, is there a point at which I should make an external air hole for these eggs?
Thanks so much in advance for any advice.