Double yolker question

Shlamoof

In the Brooder
Jul 17, 2018
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One of the eggs we put in the incubator appears to be a double yolker. We didn't know until candling it. Only one yolk seems to be showing signs of a developing embryo. Does anyone have any experience with incubating a double yolker? I'm hoping it will be okay since there is only one embryo, but I'm worried about chick to shell size ratio.
 

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Big Red Roosters

Songster
Nov 7, 2018
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I've heard of miracle stories where yes they make it to hatch and live, but 9 out of 10 will most likely perish. You'll just have to give it a try and pray for the best. With one yolk not fertilized I worry about it gathering bacteria. If i were you, candle that egg often. It might rot, but I do not know for sure. Never had it happen to me.
 

WVduckchick

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There have been a few successful threads of twins, but I don’t think I’ve seen only one fertilized. I would expect it to stop developing, or be crowded out by the other yolk.

What day are they on? Are the eggs laying down or upright? I’d be tempted to place that egg upright, or prop it up with the air cell elevated to encourage the yolks to switch places. I’m concerned that the developing one is in the pointed end, away from the air cell.

Good luck!
 

WVduckchick

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I think it's on about day 3, laying down. We don't have an egg turner, but I'll do my best to find a way to prop it, maybe a piece of paper towel roll or something on end. Thanks!

After looking closer at the pics on the computer screen instead of my phone, I'm not so sure that's development just yet. Of course, pics can be deceiving, so what you see is what matters. Will be interesting to see what they do in a few more days.
 

Shlamoof

In the Brooder
Jul 17, 2018
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I'm keeping my fingers crossed. I checked the dates and this is definitely day 4. I placed it in a paper towel roll and it worked to get the embryo right next to the air pocket. It's hard to see, but there's definitely veins starting to show. I'm so nervous!
 

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WVduckchick

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I'm keeping my fingers crossed. I checked the dates and this is definitely day 4. I placed it in a paper towel roll and it worked to get the embryo right next to the air pocket. It's hard to see, but there's definitely veins starting to show. I'm so nervous!

Nice! Are you still only seeing veins around just one yolk?
 

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