Coturnix Quail eggs

[almanquail]

I have a question regarding Japanese coturnix quail eggs,what is the average time between piping and hatching, what do quail chicks do during this period of time?

 

[tennesseequail]

If it's an external.pip the time to hatch isnt long.

 

[Ebony Rose]

Hatching is hard work. Chicks are known to rest between some of the more difficult hatching sequences, some rest as much as 24 hours between hatching phases.

 

[almanquail]

Yes I was talking bout external pip, 30% of the eggs hatched today ( day 18 ), I just found out that my incubator's temperature is off by 1.9c ( 3.4f ), the thermometer/hygrometer that I purchased online to compare my temperature took forever to arrive, I got 2 more conventional temperature gauges at the local pet store, all of them showing that my incubator is off by 1.9c ( 3.4f ), is it possible for the eggs to hatch at this low temperature? could it be just a sudden fluctuations while comparing the temp readings?

 

[Ebony Rose]

Yes. And Yes. That said, incubators are notorious for not properly registering temperature and humidity; hence the reason everyone recommends you purchase other equipment to determine their correctness.
You may experience more quitters with a slow hatch (less than average temperature), but in my personal experience, those that do hatch will be much healthier than those that had a fast hatch (higher than average temperature). My theory is that it takes time for all the stuff to grow properly.
My advise for any that seem to be extraordinarily slow to finish hatching after external pip on this slow hatch would be to very slightly open up their pip to allow more air (oxygen). Don't go overboard, they absolutely must get out of the shell themselves (in my opinion), to ensure that they are strong enough to survive. Be advised that opening the incubator once they've externally pipped has the risk of 'shrink wrapping' any of the eggs that have also externally pipped... so you need to weigh the needs of the one vs the needs of the many.
I've had an unintentional fast hatch that had a high number of chicks successfully hatch, but most died off within the first 2 weeks of their lives or had other complications and deformities which led me to cull them (for their own comfort, not mine). My fast hatch group (56 eggs set, 26 hatched), had a combination of the following ailments: splay legs, failure to thrive, constant crusting (and sealing shut) of their eyes, curled toes (also noted curled toes on slow hatch, but not to the same severity), and several chicks that looked right, but constantly cried until the day they died. I lost 15 of the 26 that hatched from that batch, and of the remaining 11, I will not allow them to breed; they'll be heading straight to freezer camp when they're of sufficient size. I don't want to include whatever diseases and deformities that they might pass along to their offspring.
As a side note, the reason the incubator was too hot was that the additional thermometer I purchased to test my incubator was wrong, so I had set the temperature according to that instrument instead of the incubator's... go figure! I'd get the only incubator in all of Panama (and possibly the world) that's gauges are actually correct!