Barred roo over silver spangled? Cclxappenzeller

[Mr. Tburg]

To cross a barred male with two barring genes to a solid female you should plan on getting about 50% barred cockerels with one barring gene. The remaining half will be barred pullets.

So if I breed my CCL roo to my APPENZELLER and kept a roo from that crossing it would have one barring gene

Taking a barred male with one barring gene and crossing it to a solid colored femal will produce 25% barred makes with one barring gene and 25% barred females. The remaining 50% of the birds will be of a solid color.

Then breed that CCLXAPPENZELLER roo with one barring gene back to the appenzeller hen then half the chicks would not have the barring gene.

If I bred the non barred siblings together then:
Would they be back to full spangled?
Would there be any color leaking through?
How much of the blue egg gene would be left?
Is this too much line breeding?
Would they breed true?
Guess the question is could I make a mint green egg laying silver spangled crested breed using what I already have?

 

[The Moonshiner]

I'll try to make the barring part easy.
Barring is sex linked so females only have one slot for it instead of the usual genes come in pairs.
So a hen either has the barring gene and is barred or she doesn't have a barring gene and she isn't barred.
Since she only has one gene that is what she passes on but she only passes it to male offspring. Female offspring get nothing from the mother because they only have the one slot. Her slot is filled by the father.
Males have two slots and get one gene from each parent. A male can have 2 non barring and not have barring. He could have one copy of barring and one not and he will be barred but SIngle factor (SF)
He passes on one gene to each offspring. 50/50 either they get a barred gene or they don't.
A male can have two barring genes double factor (DF) and he will be barred and the double dose turns off twice the color so with more white they look lighter then the females or SF males.
With barred breeds thats how they can be sexed. Males are always much lighter then females. When chicks the double dose gives them a much bigger and less defined head spot.
Sex links are made from crossing a non barred male to a barred female.. Since the male has no barring he pass no barring to his offspring. Female can't be barred.
Males get one non barred gene from their father but they get the mothers barring gene so they are barred (SF)
Barring and cuckoo are the same gene. Barred is what it's called on a slow feathering breed and cuckoo is on a fast feather breed.
Barring is barring it can be put on any pattern or combined with any pattern.
All it is is a gene that turns color on and off so it doesn't care whats under it it's just there to stop color.
Anything I missed on the barring?

 

[The Moonshiner]

So if I breed my CCL roo to my APPENZELLER and kept a roo from that crossing it would have one barring gene

Correct

Then breed that CCLXAPPENZELLER roo with one barring gene back to the appenzeller hen then half the chicks would not have the barring gene.

Correct

If I bred the non barred siblings together then:
Would they be back to full spangled?
Would there be any color leaking through?
How much of the blue egg gene would be left?

The offspring from first cross will have one blue egg gene and one non blue egg gene. Crossing those together gives you 25% with no blue egg gene. 25% with two blue egg genes. These will then breed true for blue eggs.
50% will have one gene for and one gene for not. They will lay blue (green) but won't breed true since their offspring have a 5/50 chance of passing on a blue egg gene.
IDK on the other two questions.

Is this too much line breeding?
Would they breed true?
Guess the question is could I make a mint green egg laying silver spangled crested breed using what I already have?

No not to much line breeding.
IDK if they'd breed true. I haven't breed spangled birds so not sure that genes are involved.
Can it be done? Sure I'd think so but I'm a believer that anything can be done if you understand the genes.

 

[Mr. Tburg]

Correct

Correct

The offspring from first cross will have one blue egg gene and one non blue egg gene. Crossing those together gives you 25% with no blue egg gene. 25% with two blue egg genes. These will then breed true for blue eggs.
50% will have one gene for and one gene for not. They will lay blue (green) but won't breed true since their offspring have a 5/50 chance of passing on a blue egg gene.
IDK on the other two questions.

No not to much line breeding.
IDK if they'd breed true. I haven't breed spangled birds so not sure that genes are involved.
Can it be done? Sure I'd think so but I'm a believer that anything can be done if you understand the genes.

THANK YOU
I really appreciate the help

 

[Mr. Tburg]

The offspring from first cross will have one blue egg gene and one non blue egg gene. Crossing those together gives you 25% with no blue egg gene. 25% with two blue egg genes. These will then breed true for blue eggs.
50% will have one gene for and one gene for not. They will lay blue (green) but won't breed true since their offspring have a 5/50 chance of passing on a blue egg gene.
IDK on the other two questions.

What would the results be if I took the roos from the second crossing and bred them back to the appenzeller egg color wise?
25% that have no blue egg gene their offspring would lay white
25% that had double blue egg Gene's their offspring would have the same results as above
What would the results be of breeding the 50% that have 1 for blue and 1 for not back to the appenzeller?
I've been searching for info on egg color genetics and how they are passed on to the offspring but haven't had luck do you have any recommendations

 

[NatJ]

What would the results be of breeding the 50% that have 1 for blue and 1 for not back to the appenzeller?
I've been searching for info on egg color genetics and how they are passed on to the offspring but haven't had luck do you have any recommendations

50% of their offspring would have 1 blue egg gene, the other 50% would have no blue egg gene. For hens, you can tell which one do/don't have the blue egg gene by looking at their eggs. For roosters (who obviously don't lay eggs!), you can make guesses from their parents and their daughters--if you breed a rooster to the appenzeller, and any of the daughters lay blue eggs, then the rooster has at least 1 copy of the blue egg gene. If every daughter lays blue eggs, and you have a lot of daughters, then the rooster has 2 copies of the blue egg gene. If the rooster's father were a pure appenzeller, and his mother laid white eggs, you would know he's pure for the not-blue gene.

There is one gene that controls whether a chicken can lay blue eggs or not. Since it is not sex-linked, every chicken has two versions (one from each parent, obviously). It's dominant, so you can't tell which chickens have one copy vs two except by knowing the egg colors of their parents or offspring. When a chicken lays not-blue eggs, you know they're pure-breeding for the recessive form of the gene.

There are assumed to be multiple modifier genes that affect how dark the blue is, and no-one seems to have them all figured out yet; but they make no difference unless the chicken already has the ability to lay blue eggs.

It appears that birds who lay more eggs lay lighter blue ones, as compared with birds that lay less eggs--but I don't think it's clear how much of that is caused by modifier genes (increase egg production by crossing to a leghorn, lose modifier genes, get lighter eggs) and how much is caused by the actual frequency of laying (if the hen's body can only produce the color so fast, and it gets

 

[NatJ]

I've been searching for info on egg color genetics and how they are passed on to the offspring but haven't had luck do you have any recommendations

I know there are a few sites that explain it well, but I can't remember right now what they are.

Oh, this is sure to show up somewhere: blue eggs are linked to pea comb. But since your appenzeller has no pea comb, and your legbar has blue eggs linked to ABSENCE of pea comb, it won't matter to your project. All of your birds will be pure for not-pea.