Backyard Poultry Forum • View topic - SLW colouring glossy black vs matte black

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PostPosted: Thu Mar 28, 2019 5:18 pm 
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Hatchling
Hatchling

Joined: Thu Mar 28, 2019 5:15 pm
Posts: 2
Hi can anyone provide any theories why the progeny of 2 x SLW with glossy black/green 'black parts' produce some progeny where the 'black parts' seem more grey (matte) than black?

thanks!!
bec


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PostPosted: Fri Mar 29, 2019 12:03 am 
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Dapper Duck
Dapper Duck

Joined: Sun Sep 02, 2012 6:28 pm
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Location: Ballarat
I once read that in the opinion of an Australorp breeder that the presence of Blue/Splash in their breeding program they thought was leading to a Matt black colouring in the black birds from this breeding.


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PostPosted: Fri Mar 29, 2019 3:03 am 
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Proud Rooster
Proud Rooster

Joined: Tue Mar 18, 2014 6:00 pm
Posts: 357
Agree with Spide.
As I understand it there are modifying genes which turn black into glossy black. These genes impact on the expression of blue and probably explain why blue can be so variable. Selection for a good blue colour might inadvertently select for birds without the modifying genes that produce glossy blacks.


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PostPosted: Sun Mar 31, 2019 4:25 pm 
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Hatchling
Hatchling

Joined: Thu Mar 28, 2019 5:15 pm
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Thanks for your replies. So would u expect the matte/blue to be recessive to glossy black or other way around?


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PostPosted: Mon Apr 01, 2019 9:44 am 
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Proud Rooster
Proud Rooster

Joined: Tue Mar 18, 2014 6:00 pm
Posts: 357
This topic is quite complex and I don't have any definitive answers.
The gene(s) that modify the expression of black are separate from the black gene and the splash (blue) gene.
My best guess is that those fowls with the most obvious blue also have the gene(s) that cause black to appear matte. These genes will be transmitted to the progeny separately from the gene causing blue colouration.
The article in the following link touches on this subject.
The easiest course is to keep the blue breeding lines separate from the black.


https://www.poultryscience.org/docs/pba ... 0Smyth.pdf


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