Selective evolution. I'm still trying to figure out the purpose of different colored eggs in chickens. Perhaps matching the nesting material or surrounding flora.
And as you said, the eggs that don't lose as much moisture is related to more arid climates.
Or just weren't meant to hatch. Even with tens of thousands of dollars in medical care, some babies don't live. 200 years ago, a high percentage of babies died in childbirth or shortly thereafter.
It is hard joking in the written word without emojis.
You never list me. But for good reason, I'm not likely online. I just walk away from the computer for hours without closing anything down.
Good morning and hugs.
Why 1-1.5 F high incubation temps for shipped eggs?
That's a start but they'll tear them up in no time.
At least napkins start with good traction.
Good record keeping.
When you say clears, do you do an eggtopsy to see if there was no development (infertile) or if they failed in the first few days?
If the controller applies power to the heat element as either on or off rather than incrementally, there will always be big temperature swings. Especially with a near instant read thermometer like the spot check. I adjust so that the thermostat kicks on when near my preferred temperature.
They won't.
It was so cold there, you probably need something to heat from below.
Do you have access to a magnetic engine block heater? You could put it on a small piece of sheet metal and place the water fount on that.
Another option is making a ring of paver blocks with a heat source in the center and the water above that.