Duck air sacs

[Michshell1]

Hi Im on day 20 with kharki Campbell’s I have 5 developing and moving well I think?! Are these air sacs ok for day 20? Iv lowered the humidity recently to let them expand but not sure

 

[ChickenCanoe]

They look OK to me. Lowering the temperature won't grow the air cell, lower humidity allows more moisture to escape.

 

[Michshell1]

They look OK to me. Lowering the temperature won't grow the air cell, lower humidity allows more moisture to escape.

Iv jus changed it thanks meant humidity lol

 

[Michshell1]

What would u keep humidity on now?

 

[ChickenCanoe]

It is hard to say because all eggs are different. I usually weigh eggs to insure they are losing the correct amount of moisture.
Without knowing your eggs, 40% is probably safe for a while and kick it way up approximately the last 3 days. The trouble with Khaki Campbells is that they can emerge from 23-28 days. I try not to stress too much. In nature, hens can't control ambient humidity. There can be a drought or a deluge and they still hatch.

 

[Michshell1]

It is hard to say because all eggs are different. I usually weigh eggs to insure they are losing the correct amount of moisture.
Without knowing your eggs, 40% is probably safe for a while and kick it way up approximately the last 3 days. The trouble with Khaki Campbells is that they can emerge from 23-28 days. I try not to stress too much. In nature, hens can't control ambient humidity. There can be a drought or a deluge and they still hatch.

Have u ever known one to hatch at day 23? No one I have spoke to seems to think that true but I read it too!
Ok well Iv had humidity constant on 65 as that what I was orifinally told they hav developed fine tho but il keep it on like 50 now and on day 25 unless I see internal pipping before il lockdown on humity 70 /72 ? X

 

[ChickenCanoe]

I have not but they are much more fickle than chicken eggs.
I think 65 may be a bit high for the bulk of the time but the cells don't look that bad.
I think they'll be fine. Maybe just drop it for 2 or 3 days and up it again.
Where are you and what is your normal ambient humidity?

 

[Michshell1]

In England and about 50/ 55 X

 

[Mudstar4ever]

I had one internally pip on the morning of Day 23, go nearly 48 hours without an external pip (in hindsight, I probably should have put in a safety hole but he had an exceptionally larger air cell and was super active, so I let him do his thing) and then hatch on Day 25.