My hatching diary

If think after all that I would get a breeding pair.

 

Can I suggest you get a different incubator?

 

How many thermostats and hygrometers are you using to verify that your incubator is actually running at the temperature that it is supposed to?

It's best to use at least 3 different thermometers to verify your temps. You really only need one hygrometer once you know that the one you have is reasonable accurate.

If you are getting fertile eggs that are developing get away from blaming the parents. Incubating is a skill. As you develop it your hatches will improve.

Edit to add:

Are you opening the incubator at any point after the eggs pip?

Are you running the air vents wide open at lockdown?

What temperature and humidity settings are you using?

What type of quail are you hatching?

If you answer all those questions I can probably point you to your problem.

 

Ok your setup sounds pretty good so I'm going to lean toward one of two things. Either shrink wrapping of the viable eggs when you opened the door, or humidity fluctuation causing a hard membrane. Buttons tend to hatch pretty darn easy without interference but genetics and egg care play into that as well.

I would still try double check the temp with one or two more thermometers but honestly you have some wiggle room on temperature as long as it stays within 99-102 degrees F (sorry I don't know the C* conversion off the top of my head). For humidity you can run incubation at 45-55% just pick a number and try to stay close to it, on day 14 run it up to 65-70% but not above 70.

When you receive the eggs make sure you allow them to acclimate the temp and humidity of the room the incubator is in, for 24 hours, before you set the eggs in the incubator. Touch them only with clean hands or latex gloves and don't candle or water candle them. Just assume they are doing great and don't mess with them at all. This eliminates any potential handling or care problems you may accidentally cause.

And don't worry all of us were just as excited starting up. My first hatch yielded 2 or 3 out of 50 shipped coturnix eggs and nowadays I rarely have hatches below 40% on shipped eggs and usually closer to 50. It harder to do much better than 50% on shipped eggs most times because they go through a lot getting to you. You'll get more and more as you become more skilled at incubating, and eventually you'll be able to interact with the eggs more during incubation and not cause them issues

 

Buttons should be fairly easy to incubate. First did you say you quite turning on day 3? what about the ones in the turner? When did you shut it down?
If you are only doing a few eggs, I agree with DC you should not have to open the incubator at all until day 13 and then just to remove the turner racks and add extra water for the humidity to rise. The chicks MUST have fresh air to hatch so you should double check that there is a vent of some sort on the incubator, this is true even for chicken eggs so I think the manufacturer must have them somewhere on it. Anyway try again and do your best to leave them through day 20 even 22 days sometimes. Good luck!

 

Buttons with good genetics hatch much easier than coturnix.