Cracked Egg and Candling Question!!!

[orrlux]

Hi all!

Posting on a forum is relatively new to me but I've come to this website countless times for advice as I started raising ducks. I'm going through my first successful incubation process with my duck eggs and as I was candling I found 2 questionable eggs:

One has a crack across the tip of the egg, and as it's developed has an abnormal air sac, BUT, as I watched it I could still see the little guy moving around. Is there any way I could salvage the egg with the state it's in?

The other has a dark black line going through the top but I'm not sure whether its the start of a blood ring or nothing to be worried about. I'm attaching images below - any advice is greatly appreciated!!

 

[SilverBirds]

Both have airsacs on the wrong side. Were they shipped eggs? And are they different days?

 

[orrlux]

Both have airsacs on the wrong side. Were they shipped eggs? And are they different days?

My ducks laid them. The one with the crack/weird looking airsac is a few days behind (I put it in late) while the other is a little bit more developed.

 

[SilverBirds]

My ducks laid them. The one with the crack/weird looking airsac is a few days behind (I put it in late) while the other is a little bit more developed.

Okay. The long line is the main blood vessel in the last picture. I'm not aure if the first one is dead or not. Be careful with these two if they make it so lockdown as they won't be able to get air when they externally pip (if they are positioned the correct way).

 

[orrlux]

Okay, I was worried about that long line... I'll keep an eye on it. As for the other I still see movement when I candle it, I'll keep checking that one as well.

Any advice if they do make it to lockdown on what I should do?

 

[SilverBirds]

Depends on their positioning. If they are malpositioned they will be okay. If they are correctly positioned is where I would worry. Since the air sac is on the small side they won't break into it and receive the oxygen they need and could suffocate. I'd drill a safety hole for them.