English Chocolate Orpingtons and a Dun Gene?

Amer

Advocate of Shiloh
Premium Feather Member
Nov 8, 2017
7,548
79,293
1,337
Wisconsin
My Coop
My Coop
I think Dun is only in Sumatras and possibly Seramas at the moment? I could be wrong on that though.
You’re probably right. I’ve seen dun Orp pics online but didn’t pay attention to where they were from. I don’t get dun Sumatras. Sexlinked chocolate just show sheen better which I think is a Sumatra trait. ***there are white crested dun Polish
 

ColtHandorf

🙄🤚 Sass Master
Premium Feather Member
Feb 19, 2019
5,673
35,131
927
Klondike, Texas
What color are their feet supposed to be?
Well they aren't an accepted variety here or in the UK (I don't think). So there isn't an SOP to go off of. That being said, I believe they are supposed to be dark. They are more of a brown than a slate or white. I assume that has to do with the chocolate gene. THeir beaks are the same color. They might have a bit of horn-colored towards the base.
 
May 21, 2017
12,135
31,122
1,012
I think Dun is only in Sumatras and possibly Seramas at the moment? I could be wrong on that though.
You’re probably right. I’ve seen dun Orp pics online but didn’t pay attention to where they were from. I don’t get dun Sumatras. Sexlinked chocolate just show sheen better which I think is a Sumatra trait. ***there are white crested dun Polish
Dun is also in OEGBs (fawn silver duckwing) and phoenixes. I expect it would be easier to add dun to Sumatras than chocolate.
 

nicalandia

Free Ranging
12 Years
Jul 16, 2009
9,037
4,742
516
Stuck In a Dream
My Coop
My Coop
Yeah, it sounds like your birds are dun as opposed to sex-linked chocolate.
Dun is incompletely dominant just like blue meaning the heterozygotes (dun) have a color in between the homozygote colors (black and khaki.)
Your birds are dun: I^di+ and I^di+
That means the offspring will be I^dI^d, I^di+, and i+i+.
25 percent black, 50 percent dun, 25 percent khaki respectively.
Can we Please follow correct nomenclature? https://www.backyardchickens.com/threads/chicken-gene-mutation-nomencalture.1464208/
 

Amer

Advocate of Shiloh
Premium Feather Member
Nov 8, 2017
7,548
79,293
1,337
Wisconsin
My Coop
My Coop
I’m sorry, I thought I was:
18662000-79EC-4A9B-B938-A971BE173383.png

or is this about the backslashes? If it makes you feel better I can add them. I just find it easier to skip them on an IPhone.
 

ZooPro

In the Brooder
May 17, 2021
8
7
11
So my new question is if this is in my chocolates, what will their offspring produce? I understand the light chicks will probably reproduce this gene readily, but what about the darkest chicks and medium chicks?
 

Attachments

  • 62AD5B79-4594-49DB-A8C2-4B0E07C17D60.jpeg
    62AD5B79-4594-49DB-A8C2-4B0E07C17D60.jpeg
    372.8 KB · Views: 2

New posts New threads Active threads

Top Bottom