I Started with 7 Muscovy eggs, 1 was clear,1 quit during week 2 and I had 5 left that we're going good. I couldn't keep the humidity up so someone suggested that I spray the eggs, so I have been twice a day. I candled today and it looks like 3 died at the same time and 2 are still alive. The2 left however have weird air sacs shaped like and 8. They go on lockdown Monday, do the last 2 have a chance and was I wrong to spray the eggs?
I misted duck eggs once during incubation and my results were bad. I have never done it since and hatch rates are much better. were your eggs shipped eggs? mis-shaped air cells are caused from damage to air cells during shipping
For what it is worth, I misted duck eggs once a day during the last week of incubation only, when my broody hen was sitting on them. I figured that if it were a mother duck, she would be naturally wetter and keep them wetter but a chicken would not. So I added the misting daily when she got off to poop. We had a great hatch rate. 12 out of 13 first time round, and 5 out of 6 the second time. Please note, it was only during the "lockdown" period and only once a day. You say that you had difficulty getting the humidity up,so the misting would have helped with that. I think that all our efforts with artificial incubation are never as good as a good broody hen! So perhaps the success rate is always going to be lower?