Don't open that incubator?

steffpeck

Songster
12 Years
Mar 25, 2007
1,957
3
196
Erda, UT
It causes the humidity & temperature to fluctuate. When you are on the last 3 days of hatching, the humidity changes can cause the membranes of the eggs to dry out, and then the chicks can't hatch. Been there, done that.
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hinkjc

Crowing
Premium Feather Member
13 Years
Jan 11, 2007
12,683
130
331
PA
Consistent temp and humidity are critical throughout incubation, but of utmost importance during hatch time. Opening the incubator causes the entire environment within the incubator to change, thus potentially causing problems (regardless of how fast it "gets back to normal"). Quail are really sensitive to these changes and need the constant humidity for their expedient hatches. They are slow to start, but typically when they start they pop like popcorn. Opening the incubator can force the membrane to shrink wrap around them and make the whole process shut down. I always stress keeping it closed to ensure good hatches. I've been there and learned from experience. I hatch thousands of eggs a year and learned the hard way how important this is. Good luck with your next hatch.

Jody
 

twigg

Cooped up
11 Years
Mar 2, 2008
1,389
15
171
Tulsa
Quote:
Much depends on the type of incubator you have.

Styrofoam, still-air are the worst in this respect. They struggle to maintain an appropriate temp. gradient inside, and when it is lost they can take hours to re-establish temp and humidity.

Forced air are faster, but the Genesis and Hovas have such paltry heaters that they still struggle a bit.

Larger incubators, with decent sized heaters and good fans don't suffer nearly so much. Mine, foe example, will normally regain humidity lost within about 5 mins of closing.
 

chickenandabiscuit

In the Brooder
11 Years
Aug 28, 2008
51
0
29
Kane, Illinois
I incubate in styrofoam incubators and hatch in a plastic Brower Top Hatch Incubator. I leave my chicks in there for 2 or 3 days until all have hatched that have pipped. If there are unpipped eggs 2 days after the first one hatched I shut it down. Chances are they won't hatch and if they do they may pass that characteristic of late hatching on to future generations. Remember that they can hang out in there for up to 3 days with no food and water. Its hard to watch, but it is best for all of them to get a good start and a chance to hatch.
 

Cason

Songster
11 Years
Sep 11, 2008
598
19
174
Green City, MO (North Mo.)
I'd really like to open it to at least remove the little guy that was hatched on Wednesday. I don't know what's going on with these eggs (purchased different places, but set the same day) Banty eggs take forever to hatch..
Anyway, I'd hate for him to starve- it's been two days.
 

shelleyd2008

the bird is the word
11 Years
Sep 14, 2008
23,381
121
351
Adair Co., KY
Quote:
The yolk that was absorbed before the chick hatched will feed him for about 2 days. So relax, he won't starve!!
Oh btw, it must be nice to have late hatching banties!! Mine have hatched at least 2 days early every time so far!! They are usually still in the turner when they start pipping. Even my hens hatch 2 days early!
 

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