OK...all you Texas egg hatchers...I have to increase my hatch rates...too many late term deaths...Here's what I am doing:
I have a home made ice chest incubator. Holds temp good, holds humidity good. Calibrated the hygrometer, checked temp with medical thermometer. All good. Running 99-100 temp mostly, sometimes drops to 98 or up to 101, but that's it. Humidity at 43 days 1-18 and 63 after. I have a fan and turn the eggs (I don't open to turn) I have 5 or 6, 3/4" holes for air exchange (might be closer to an inch). I see the chicks moving before day 14...after is hard to see anything. Eggtopsies show fully formed chicks but most haven't absorbed yolk... I do hatch some, but close to only 50-60% of the fertile ones...less this time.. Whats going on? I have a neighboring chicken hatcher who runs humidity at 30 then 50-55...Is that common here in Texas? Is that working for a lot of you?