help!!!

[chickienini]

i have 30 eggs and 11 eggs hatched on day 19, 1 egg hatched on day 20. On day 21, nothing else hatched, but i decided to wait till day 23, today is day 22 by the way, do you think those eggs will still hatch ?? :'>>

and what do you think went wrong? im using a diy forced draft incubator, because thats what my teacher told me to use ( this is a project, and the allowed mortality rate is 40%), and the temp. in there ranges from 37.2- 37.9 degrees celsius. thats maintained till now, and the humidity ranged from 40-55%, and on day 18 until now, i increased the humidity to 60- 75%.

PLS HELPP im afraid to candle the eggs, because they might get shrink-wrapped like they say :'>

 

[My15Ducks]

The eggs will not get shrink wrapped if you open the incubator to candle them . I open my incubator so many times during lockdown and have never had a single egg get shrink wrapped. I just do it quickly and mist in a little water if necessary to keep the humidity high.

Are any of the eggs pipped? The first thing I would do is candle all the eggs and check for signs of life

 

[Ridgerunner]

i have 30 eggs and 11 eggs hatched on day 19, 1 egg hatched on day 20. On day 21, nothing else hatched, but i decided to wait till day 23, today is day 22 by the way, do you think those eggs will still hatch ?? :'>>

The only way to know is to wait. As long as you are not smelling a rotten egg smell it should not hurt to wait as far as incubating the eggs.

Before they hatch the chicks absorb the yolk. They can live off of that yolk for 72 hours or more without eating or drinking. So how many hours have passed since the first one hatched? That would tell me when I need to remove them from the incubator. Use hours, not days. Days can get confusing.

and what do you think went wrong?

Could be a lot of things. After the hatch is over open the unhatched eggs and see if you can tell if they even started to develop or when they stopped developing. Use the links below to try to figure out what might have happened. As you can see it might have been a lot of things.

Common Incubation Problems: Causes and Remedies (ucanr.edu)

Trouble Shooting Failures with Egg Incubation | Mississippi State University Extension Service (msstate.edu)

PLS HELPP im afraid to candle the eggs, because they might get shrink-wrapped like they say :'>

Some people feel they are bullet-proof, nothing bad will happen to them even if they break the rules. I saw that a lot when I was a scout leader, it made knife and ax training very interesting. We only had to take one boy to get stitches so I consider that a success.

While it is possible to shrink wrap a chick by letting the humidity in the incubator drop (that's why we raise the humidity during lockdown) it really is pretty rare even if you don't take steps to maintain humidity. Some people will tell you that shrink wrap will always happen if you open the incubator but they are just as wrong as those that tell you it will never happen. Taking steps to maintain humidity does help your odds.

Since I understand that it can possibly happen I do not open the incubator without a reason. But if I have a reason I consider serious enough I open it and take my chances. Opening it is usually not a problem.

Candling those eggs will not improve their chances or hatching. I don't see any benefit at all of doing that. When you consider the hatch is over it will not hurt to candle them but I just open them to see what I think may have gone wrong.

If your 72 hours are up that would be a good reason to me to open the incubator and get the chicks out.