Losing chicks after lockdown

[danahud]

I'm frustrated..... I have hatched my own eggs, and eggs from other sources,several times.
m,y hatch rate has never been very good, maybe 25%...... What confuses me is that going into lockdown the majority of my eggs look super healthy and the embryos are moving vigorously...... Then something happens and many eggs do not hatch...... Any ideas?

 

[sumi]

It could be any of a number of things from incorrect humidity to contamination of the eggs... Here is a breakdown of the possible cause, I hope this helps shed some light:

https://www.backyardchickens.com/a/egg-failure-to-hatch-diagnosing-incubation-problems

 

[mirandaleecon]

I'm frustrated..... I have hatched my own eggs, and eggs from other sources,several times.
m,y hatch rate has never been very good, maybe 25%...... What confuses me is that going into lockdown the majority of my eggs look super healthy and the embryos are moving vigorously...... Then something happens and many eggs do not hatch...... Any ideas?

What kind of incubator do you have? If it has red plugs in the vents, are you removing the plugs?
What humidity are you going into lockdown with? How about throughout incubation? Temperature?
Are the chicks that do hatch sticky?

Any other info would help to figure out what's going on...

 

[madeintexas806]

Following.