Humidity during incubation

[ChickenCanoe]

It isn't a linear loss but generally, chicken eggs should lose 13% of weight during the 21 days.
So I shoot for 0.6-0.65% loss each day.

https://poultrykeeper.com/incubating-and-hatching-eggs/weight-loss-method-forl-incubation/
You want a good gram scale. Some of the small pocket ones are accurate for individual eggs.
I recently bought a larger KD-8000 platform scale so I could weigh a whole egg tray at a time. It is extremely accurate and has a 8000 gram capacity.
I bought mine at www.oldwillknottscales.com

 

[babs silkies]

It isn't a linear loss but generally, chicken eggs should lose 13% of weight during the 21 days.
So I shoot for 0.6-0.65% loss each day.

https://poultrykeeper.com/incubating-and-hatching-eggs/weight-loss-method-forl-incubation/
You want a good gram scale. Some of the small pocket ones are accurate for individual eggs.
I recently bought a larger KD-8000 platform scale so I could weigh a whole egg tray at a time. It is extremely accurate and has a 8000 gram capacity.
I bought mine at www.oldwillknottscales.com

Thanks for the info. I have a digital scale, postal I think, that I bought to weigh the parrots on. A necessary thing to have to determine health because they are pretty good at hiding illness.

 

[babs silkies]

I know it has been awhile but Ive finally got the hang of using the incubator. Last hatch I managed 7 out of 8 eggs. Have no idea what happened with 8 because the chick looked developed, just didn't make it. Thanks for all the help!