I am practicing with incubating my australorps in preparation for my future Ameraucana breeding. Is there anyone who maintains their humidity by weight, or has ever? I have read a few different "expert" figures, and I would like to hear experienced advice. Specifically, I have read that over the full 21 days, the eggs need to lose a total of 13% of their weight. The questions I have are how this is achieved, especially since day 18 is supposed to have increased humidity, limiting the weight loss for those final three days. So I have also read that the 13% needs to be lost by day 18, affecting the calculations. And finally, I have read several who stay with 12% over 18 days.
I may be splitting hairs here, but this is only my second batch in the incubator, and I am certain humidity and temperature control were issues in the first round. I would love to hear some veteran hatchers' thoughts and experience.
Thanks in advance!