Oldest eggs you've hatched?

[Wandering_r0gue]

What are the oldest eggs you've hatched? I currently have a batch in the incubator, 7 of which were a out 2 weeks old prior to going in for incubation.

I candled them today, and 6/7 had heveloped. Will have to see how many hatch.

Just curious if anyone has hatched older eggs successfully?

 

[sourland]

I had one 'Sears Roebuck' round incubator as a kid. I would set a batch of eggs and start collecting for the next setting. Routinely it took 22 or 23 days between 'settings' including cleaning and disinfecting. Eggs were stored in a earthen cellar at around 60F and 60% or so humidity. My hatches were generally 85% or better.

 

[NatJ]

What are the oldest eggs you've hatched? I currently have a batch in the incubator, 7 of which were a out 2 weeks old prior to going in for incubation.

I candled them today, and 6/7 had heveloped. Will have to see how many hatch.

Just curious if anyone has hatched older eggs successfully?

I notice this thread is in the "quail" section.

Are you asking specifically about quail eggs, or about eggs in general?

 

[007Sean]

I had one 'Sears Roebuck' round incubator as a kid. I would set a batch of eggs and start collecting for the next setting. Routinely it took 22 or 23 days between 'settings' including cleaning and disinfecting. Eggs were stored in a earthen cellar at around 60F and 60% or so humidity. My hatches were generally 85% or better.

I too! It was a Brower incubator, sold by Sears & Roebuck!

 

[007Sean]

I've set eggs that were 14 days old but the viability had decreased pretty dramatically.

 

[Wandering_r0gue]

I notice this thread is in the "quail" section.

Are you asking specifically about quail eggs, or about eggs in general?

Specifically quail, but really. Any eggs In general. May be a useful resource for others.

 

[Wandering_r0gue]

I've set eggs that were 14 days old but the viability had decreased pretty dramatically.

In what sense? Did they not develop? Not hatch? Chicks didn't survive? Are you able to provide more specifics?

 

[007Sean]

They didn't develop the further away from 7 days at storage before incubating. Those that did develop, hatched and did fine. It seems to me that the germ cell degregrates rapidly! ...even if stored properly.

 

[Wandering_r0gue]

They didn't develop the further away from 7 days at storage before incubating. Those that did develop, hatched and did fine. It seems to me that the germ cell degregrates rapidly! ...even if stored properly.

Interesting. 7 of the ones I set were probably close to 2 weeks old, 10 days at a minimum.... and 6/7 have developed. I am curious as to what will hatch.

 

[NatJ]

Specifically quail, but really. Any eggs In general. May be a useful resource for others.

I've only done chicken eggs. The oldest ones that hatched were about two weeks old when I set them. Older eggs mostly did not develop, although I think there were a few between 2 and 3 weeks old that started to develop and then quit at some point.