clodiloa, 30-8-2011 0:34:
Yes, I want but now it's so. To intensify the color what do you do? Do you cross her with a black cock? Clodiloa
Bene Henry, posta qualche foto.
Ciao Clodiloa, I like to give you my point of view of how I would approach this situation.
This hen have a good type but the intensity of her coloration have diminished by the chosen crosses that are responsible for the reducing of the black pigment.
The first thing that comes in mind is cross her with a black cock, on first side this seems a relevant solution. But it is not !
A Black cock should have as ground-color E/E (= Extended Black) , your hen have as ground-color eb/eb (= Asiatic Partridge).
You can see this are not matches because when you cross these 2 you should become as ground-color E/eb (= Black) because the "E" is dominant over the "eb".
How to approach this situation ?
First we have to know what are the color-genes she have and second what should be the color-genes she need. In this way we know what she need to become and what she must loose.
Now for me your perniciata Argento hen have as genetic-code "eb/eb S/- Co/co+ Pg/pg+" and she should have "eb/eb S/- co+/co+ Pg/Pg".
The Dominant gene Columbia, in this case heterozygote (in single doses) "Co/co+" is responsible (partly) for the pushing the black pigment to the endings (head/neck, tail, wings and foodfeathers).
The Dominant gene Pattern, in this case heterozygote (in single doses) "Pg/pg+" is responsible (partly) for the not pronounced mutiple pattern.
To intensify the coloration you need to get out the gene Columbia (co+/co+) which she have now in a single doses and to bring back together the double doses for the multiple Pattern (Pg/Pg) which she have now in a single doses.
How you can do this ?
You need to cross her with a perniciata Argento cock,
first choses : a perniciata Argento cock who have not the gene Columbia (co+/co+) , or second choses : who have the gene Columbia in a single doses (Co/co+)
and
first chose : a perniciata Argento cock who have the gene Pattern in double doses (Pg/Pg), or second choses : who have the gene Pattern in a single doses (Pg/pg+).
That will bring you to your intensified hen : black patterned silver multiple laced partridge/brown (eb/eb Pg/Pg S/-).
This is what is called a detailed determination of the lacks in the practice into theoretical approach to can come to a solution in the practice.
(sorry it was a rather long and slow explanation)
Danny
[Modificato da Danny_57 30/08/2011 10:54]