when i hatch coturnix i run incubator at 99.5 with 20-30% no more then 40% humidity until last 4 days then i run humidity in 80-85 % range i average 75% -85% hatch rates i run auto tunners. hope this helps i have had 100% hatch twice on my own eggs, shipped eggs i hatch anywhere between 45 and 50%. i incubate 120 eggs at a time.I'm on day 17 of 74 14-0z & above Coturnix quail eggs I set--I have 16 hatched so far. I'm worried I'll have another bad hatch rate. Last time, I set 57 & only hatched 34 and these are my own eggs that I collected in 5 1/2 days (45-50% humidity & 65% at lockdown, 99.5-99.8 temp). A friend told me to up my humidity to 60s then 70s for the last 3 days. I live 6500 above sea level & I've heard it can be tricky to hatch at this elevation. With these batch of eggs, I was able to keep the humidity at a more consistent 60s the first 15 days then 77% at lockdown and kept the temp at a steady 99.8.
What else can I do different?