Mystery, the duckling that won't hatch

[Olivia Fetterly]

Hi. I need advice. I have a mixed breed duckling that is almost a week overdue to hatch. I candled it and it is very much alive, there are veins and it is moving. The air sack stared increasing in slant and size a few days ago but since seems to have stopped or at least slowed. Development started on July 27th and I'm not sure why it is taking sooooooo long. Any thoughts on if I can speed things up? The I have decreased temp to 37 degrees Celsius, it is very humid and conditions are prime to hatch. I'm just confused.

Please help, it is day 34!
Also I'm pretty sure there is no Muscovy in it.

 

[Duckduckchicken32]

Can you show us pictures? If it’s in the air cell then you can make a safety hole. It’s really late for a baby to hatch. was your incubator warmed up all of the way before you put the eggs in?

 

[SilverBirds]

What was the temperature and humidity during incubation? Can you post pictures?

 

[New duck mommy 2021]

I Wouldn’t make a safety hole unless baby has internal pip
Usually the air cell will drop a few days before hatching starts
Is there any shadowing along air cell yet ?
If not do you see any bruising on the egg at all ? Sometimes baby can be in the wrong position and try to pip outside the air cell
Did you have calibrated thermometers ? What was your humidity during incubation
things can slow or speed up hatching depending on temps and humidity
I never have lowered my heat for hatching
I run 37.5 and 40-45 for incubation then 65-70 for hatching

 

[Olivia Fetterly]

Temp is 37, sometimes going to 36.8 . Humidity is 60%. My incubator is kinda diy, I got the egg I'm a surprise occurence. But the temp stays consistent and I keep humidity up with a spray bottle. I have a thermometer and humidity gauge. I will send pics

 

[Olivia Fetterly]

Ok so maybe I should raise temp? And humidity. I'll send pics

 

[Olivia Fetterly]

Here are 2 candling pics

 

[New duck mommy 2021]

If you put it in July 27 then today would be 31 days
Because you are running a diy and temps have gone below the 37.5 baby may be born later
I would guess she should start her hatching anytime with internal pip and her air cell drew down
You can candle this egg a few times a day until there is an external pip
Once that happens it’s best to leave them be
But be careful not to flip them all over as it could cause them to get confused on position
Just hold the egg the way it lays in and put the flashlight to the air cell end
You should see shadowing along the air cell
If you can take a picture that would help as well

 

[New duck mommy 2021]

Here are 2 candling pics

The egg looks great but looks behind for day 31
At the end it’s usually fully dark and you can hardly see anything besides shadowing
Keep the egg laying so the air cell that’s dropped is facing up
I would keep the temp at 37.5 and lower humidity to 50 till you see internal pip then up to 65 and when baby hatches it jumps to 70 on it’s own if that’s your only egg you can lower the temp to 37 while baby dries off

 

[Duckduckchicken32]

The veins are not recided from the shell. I don’t think he’s ready to hatch.