Author Topic: Dun variety project  (Read 6954 times)

John W Blehm

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Re: Dun variety project
« Reply #15 on: December 30, 2024, 04:29:22 pm »
I don't know much at all myself on the Dun genetics though.  However, I know that it can be at times sex linked, but also not...

The Dun gene and the Chocolate gene (sex-linked) can both produce a feather color/variety that is shown as Chocolate.

Ameraucana Chickens, p75
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Dun, ID - Incompletely dominant. Primarily inhibits production of black pigment. Two dun alleles (ID/ID) produce khaki, aka splash dun. A Dun Ameraucana (ID/i+) X a Dun Ameraucana (ID/i+) = 25% black, 50% dun & 25% khaki.

Ameraucana Chickens, p72
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Chocolate, choc - Recessive mutation. Chocolate dilutes black/eumelanin. It breeds true.

Elijah Ensor

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Re: Dun variety project
« Reply #16 on: December 30, 2024, 08:05:32 pm »
Thanks for clearing that up for me, makes sense!
-Elijah Z. Ensor 🙂

John W Blehm

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Re: Dun variety project
« Reply #17 on: April 01, 2025, 07:51:08 pm »
I put the last hatch, of ten, of the season in the incubator yesterday. I'm down to just bantam buffs and working yet on the bantam dun project, which also involves using blacks. Some lavenders have also popped up, since the last time I recreated my bantam blacks I used silvers and lavenders. Some of the lavenders aren't just lavender, they have brownish foreheads like some of my dun chicks. I'll grow some out to see what Chocolate Lavender looks like...maybe it is Dun Lavender, but that debate is for another day.
I haven't had any really brown chicks hatch this year, like the one or more last year. Much of what I've read about dun is it should look enough like sex-linked chocolate to be shown as chocolate. There are others that say dun is more "steel" or bluish and from my experience they are closer to the truth. From black to dun matings I'm getting black chicks, as expected, and very dark chicks with brownish foreheads. I'm thinking that is the day-old phenotype I want to get the best dark brown/chocolate adult phenotype. I'm only keeping those dun chicks with brownish foreheads and the rejects/culls are sold locally as easter eggers. Many of the chicks are hatching with what appears to be a khaki phenotype and many are splashed.

Russ Blair

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Re: Dun variety project
« Reply #18 on: Today at 11:41:24 am »
Thanks for the update John, I am amazed at the different phenotypes you are hatching. The genetics and how they drastically influence the appearance of chickens are what keep this exciting. I look forward to seeing how the lavender colored ones with dark heads feather in.
S.E. Michigan