which breed are the ducks again WV? and are your intentions to remove spray and cool them during the day at times? the reason I ask is weight loss issues for duck #1 and #2 a newly laid eggs air cell effect on that too

I set Swedish duck eggs last Tuesday, all less than 10 days laid. I will be adding chicken eggs tomorrow, day 7 for the ducks, so lockdown/due date will be the same for all of them. All the chicken eggs will be less than 10 days old also (well, I might sneak in a couple older lavender eggs). I was just trying to decide whether to add tomorrow's eggs in with them or not.
I don't usually spray my duck eggs, and I don't think I will this time, or do the cooling thing either.