Help, membrane not broken

[ManWithChicks]

What can I do, I tried to assist and egg broke this direction, chick has no hole in membrane but is cheeping.

 

[ChickenCanoe]

More info.
I guess you are talking about incubation.
What species? What day are they on? Why are you candling at hatch?
Handling the egg at hatch usually makes matters worse.

 

[ManWithChicks]

I added oil amd saw many active veins

 

[ManWithChicks]

Sorry, guess photo didnt post, let me try again. I am on day 22 , this is the last egg and it knocked out a large section of shell the night after day 21.
This is the last egg of the batch and it was alone in incubator, the other 4 hatched day 19.

When I moved eggs to lockdown, this one did have a larger aircell that was mishappen.

It didnt seem alive,so I tried to peel some shell with tweezers, but instead of horizontal, the shell snapped cleanly verticalthe chickstarted moving and piericng the tip of its peak what look like through yellow and vein, but if there is a hole iti is so small. It is also facing up towards small side of egg.

 

[ChickenCanoe]

What was the purpose of the oil?

 

[ManWithChicks]

I took this after wetting the entire membrane with water on a wq tip

 

[ManWithChicks]

What was the purpose of the oil?

Following this link
https://www.backyardchickens.com/articles/guide-to-assisted-hatching-for-all-poultry.72886/

 

[ManWithChicks]

Also, I didn't apply oil where I think I saw the beak

 

[nuthatched]

Following this link
https://www.backyardchickens.com/articles/guide-to-assisted-hatching-for-all-poultry.72886/

probably to see better

 

[Mvan42]

Looks like that is the pointy end of the egg???

Is it still chirping? Gently remove a little of the membrane if you see blood stop and wait a few hours...