- Aug 28, 2014
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Genetics addicts: What would a tailless, double tufted Araucana roo over #1)Svart Hona, #2)Brown Leghorn, #3)RIR
What could the birds look like?
What color eggs would they lay?
Here's the roo: View attachment 1213460
Anything can happen. Rumplessness is a multi-gene deal because there are many modifying genes in addition to the several genes that can cause it (plus accidents and injuries). There are dominant, incomplete dominant, recessive and accidental ways of getting rumpless birds.
I have no idea what "double tufted" is supposed to mean. Tufts are a homozygous lethal gene, ergo your bird cannot have a double dose, and only half of his offspring will have tufts. It's assumed that if one side of his face has tufts the other will too, just like people don't grow eyelashes on only one side of their face.
Your boy isn't a recognized color I know of, but he has bleed in his shoulders. Looks like he might be S/s, heterozygous for silver and gold. Otherwise, he looks black. You'll get colorful mutts, but he's a mix and any number of combinations might happen. His black is going to mostly cover other colors.
Egg color should hopefully be light blue over Leghorn and Svart Hona, and green from the RIR cross