Hatching- day 13

[Letticethemagpieduck]

hello,
I currently have 3 magpie duckling eggs incubating at day 13.
The photos go in the order of- day 4, day 8, day 11.

The ducklings are all forming well and I can see them moving around in the eggs. The question I have is about the air sack, I know that it is supposed to grow during the incubation but I have yet to notice a difference between the day 1 air sack and day 13. I have not drawn a line round it like most people do (probably should have) but do you guys think it just because it is such a slow change I haven’t noticed or because it’s not growing? If it’s not growing then does reducing the humidity help it grow?
Thanks x

 

[MagpieDucks]

What is your humidity at? Can you try and get a picture that shows the air cell more clearly?

 

[Letticethemagpieduck]

What is your humidity at? Can you try and get a picture that shows the air cell more clearly?

The incubator I have is a janoel 10. It doesn’t show the humidity but the previous owner had really good hatch rates and just half filled the centre water container every 3 days or so. I do have a humidity reader but I’m pretty sure it’s way off. It says that my house has a 98%humidiy but I’m pretty sure that’s wrong. I shall try get a picture of the air sack now.

 

[Letticethemagpieduck]

What is your humidity at? Can you try and get a picture that shows the air cell more clearly?

These are not the best pics but I hope it is clear enough? Thanks

 

[MagpieDucks]

View attachment 1675514 View attachment 1675515 View attachment 1675516 View attachment 1675517
These are not the best pics but I hope it is clear enough? Thanks

That's a lot better, thanks. They don't look as bad as they could be, but I would probably lower the humidity a touch, just to be sure.
Here is an article on humidity from @WVduckchick.
https://www.backyardchickens.com/articles/incubation-humidity.73386/
The chart is especially helpful.

 

[Letticethemagpieduck]

That's a lot better, thanks. They don't look as bad as they could be, but I would probably lower the humidity a touch, just to be sure.
Here is an article on humidity from @WVduckchick.
https://www.backyardchickens.com/articles/incubation-humidity.73386/
The chart is especially helpful.

This is brilliant, thank you x

 

[WVduckchick]

Not bad, but I’d let the water dry up for at least a week and check them again.
The development pics look great otherwise!!
Good luck!