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It IS possible - but most people don't advise incubating double-yolked eggs, as it's rare for both babies to make it. One of the twins will tend to be much smaller that the other, and things get complicated when two ducklings are trying to pip into the air cell at once at hatch time.
I believe it was TennesseeTruly here on BYC who DID successfully hatch out twin Call ducklings, completely by accident (she didn't realize the egg was a double-yolker until after it had been incubating for awhile and already contained TWO viable embryos)...but one was much smaller than the other and died suddenly a few days later, if I remember correctly.
Here's the links to TennesseeTruly's threads, documenting her twin Call duckling experience - it's an interesting read even if you don't have double-yolkers!:
Discovery of the double-embryo egg: https://www.backyardchickens.com/forum/viewtopic.php?id=282887&p=1
The hatch: https://www.backyardchickens.com/forum/viewtopic.php?id=287663
Pictures of the babies - including the twins (the image links may be broken at this point): https://www.backyardchickens.com/forum/viewtopic.php?id=290600
Little Spirit passes away: https://www.backyardchickens.com/forum/viewtopic.php?id=291674
I hope she doesn't mind me sharing little Spirit's story like this - it's very educational! The fact that Spirit even hatched and got to see the world is a miracle!
It IS possible - but most people don't advise incubating double-yolked eggs, as it's rare for both babies to make it. One of the twins will tend to be much smaller that the other, and things get complicated when two ducklings are trying to pip into the air cell at once at hatch time.
I believe it was TennesseeTruly here on BYC who DID successfully hatch out twin Call ducklings, completely by accident (she didn't realize the egg was a double-yolker until after it had been incubating for awhile and already contained TWO viable embryos)...but one was much smaller than the other and died suddenly a few days later, if I remember correctly.
Here's the links to TennesseeTruly's threads, documenting her twin Call duckling experience - it's an interesting read even if you don't have double-yolkers!:
Discovery of the double-embryo egg: https://www.backyardchickens.com/forum/viewtopic.php?id=282887&p=1
The hatch: https://www.backyardchickens.com/forum/viewtopic.php?id=287663
Pictures of the babies - including the twins (the image links may be broken at this point): https://www.backyardchickens.com/forum/viewtopic.php?id=290600
Little Spirit passes away: https://www.backyardchickens.com/forum/viewtopic.php?id=291674
I hope she doesn't mind me sharing little Spirit's story like this - it's very educational! The fact that Spirit even hatched and got to see the world is a miracle!
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