Breeding Exchequer colored birds for type with a limited gene pool.

[Celtic Hill]

What would it take to breed Exchequer leghorns to the standard? Obviously it would take time but how do you get around the hurdle of birds lacking type and getting type into the next generation? From what ive gathered Exchequer leghorns are not very common so it's not like you have of breeders to get birds from and then outcrossing is hard because of the genetics involved with the EL variation.

Do any breeders have any imput?

 

[nicalandia]

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get the best possible Exchequer leghorn mated to the best type Black Leghorn you can get your hands(Exchequer roo over many Black leghorns) hatch about 20, mate the best type F1 hens to the Best Type F1 Roo(F1xF1) hatch as many as youcan and Cull heavily....

 

[Celtic Hill]

So blacks will cross with Exchequers and a portion of them will close to the right pattern?

 

[nicalandia]

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well if you think about it, the chicks that will come from that mating will have exactly half of each parrent genetics even if they dont look like it, so when you mate say them together some will end up looking black and some exchequer... but with good type...

the best way would be keep track records of all your matings, they will have same dad but different mother's so you'll be breeding half siblings

 

[Celtic Hill]

Okay thanks!!!

 

[punky rooster]

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"Tony" in CT has Black Leghorns. . .

 

[nicalandia]

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here try Mr. Henk Genetic calculator, you will find yourself playing with it for hours..

http://kippenjungle.nl/kruising.html

here a nice pic of my Exchequer x Black breeding I entered in the calculator...

 

[lildinkem]

I had an Exchequer pop up out of no where last year from offspring from breeding that mix male I shown pics on the other thread. But it is a pullet. She looks like more Leghorn then Orp. Seeing that her gradad is 1/2 Buff orp and 1/2 Meyer Hatchery who knows what, can I do the reverse of your breeding. I took her to a Black male and every bird that hatched was Black. Then a friend who I bought some Australorps, were sold to me as layers specials are also Exchequer in appearance, and again pullets.

nicalandia I am thinking I need to take these girls back to that mix cock cause he may very well carry the gene. Would that be a fair assumption?
My Aussie layers specials

My mixes granddaughter.

I think she look like a Leghorn to me.

 

[nicalandia]

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That is Correct.. as you already know it seems the gene is recessive or needs other genes to be expressed and guess what? your hen has them.. and her offsprings also but are heterozygous for it, a back cross to their mom will yield some exchequer...

there is an ongoing debate on the "Classroom" where genetic gurus hang, about how is exchequer produce, I am with the guys that think Exchequer to be a recessive Mottling with a tightly link modiffier or a allele or mottling mo^E? some say is mottling with dominant white.. I am with the mottling crowd

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below is GotGame exquisite mottle OEG(called spangled in the OEG)

 

[lildinkem]

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That is Correct.. as you already know it seems the gene is recessive or needs other genes to be expressed and guess what? your hen has them.. and her offsprings also but are heterozygous for it, a back cross to their mom will yield some exchequer...

Awesome!! Wait till next season I will be willing to share Celtic. I can get you eggs or some grow outs as soon as I decide who I want to use with her. But, IF you like Exchequers, I can see thru Dan Honour who here in the States may have an Exchequer Leghorn cockerel to spare and see about getting one and taking the Leghorn looking girl to him. Still wonder how these Aussies came out like this. Still a great look for a bird and I will do my best to make a few more. Thanks nicalandia for the expertise!!