ConPollos
Chirping
- Mar 21, 2015
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What is meant by "not breeding true" is that their body type and coloration will probably fluctuate, sometimes wildly, between siblings. If what you're going for is a blue egg layer, then THAT tends to breed "true" because blue eggs are dominant. That means if a hen has only one copy of the blue egg gene, she'll still lay blue eggs. If the other half is for a brown egg gene, then she lays olive eggs (or just a muddy blue, depending on how strong the brown and blue are). This site has some really good simple explanations on what you can expect from your blue egg layers: https://scratchcradle.wordpress.com/2012/07/08/gms2-breeding-for-blue-eggs/
The "problem" with the blue egg gene being dominant is that if you cross a hen that has only one copy along with a rooster that has only one copy, then 25% of chicks won't be blue egg layers. 50% will lay/carry blue but be like the parents that if crossed with another 50/50 they will end up with the 1-2-1 pattern of chicks, and another 25% will be "pure" blue egg carriers, in that if they were crossed with a bird without the blue egg gene, all chicks would be carriers.
Interesting info, thank you. Cackles EEs are supposed to lay blue, green, possibly pinkish or pink maybe. So, suppsedly their babies will do the same. I hope so.