- Jun 10, 2012
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I knew she had a double yolker and decided to let a hen try hatching it. It was her own egg.Nine chicks from eight eggs? Then ... it is possible to hatch a double-yolk egg!? I had not thought it was.
Just like you I had read that it's highly unlikely that a double yolker would hatch, one of them might survive but the second one definitely wouldn't.
Being me independent and all, I tried several double yolkers in an incubator with no success. As an independent thinker I decided to let a hen try, she was successful. I was able to identify the two because when I checked on her that morning she still had seven unhatched eggs and one shell in the nest, but two chicks. I promptly marked them to see how they would develope and to see how similar they look as growing juveniles and then as adults.
They looked identical all the way to adulthood with the exception of the one chick being slightly smaller from the beginning, it caught up in size by the time they were ten months old.