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Yellow Starfinches

Posted: 20 Oct 2012, 06:18
by Stavros01
Hi to all

I would like to know how does this mutation is caried.
Is it a combination between mutations or a caried one and if so can males and hens be split to yellow??

Thanks


Best regards
Gustavo

Re: Yellow Starfinches

Posted: 20 Oct 2012, 06:34
by SamDavis
If you mean the common yellow faced star finch then it is autosomal recessive, so yes both hens and cocks can be splits.

Re: Yellow Starfinches

Posted: 20 Oct 2012, 06:47
by Stavros01
No, SamDAvis My mistake.
I meen yellow body star finches

Re: Yellow Starfinches

Posted: 20 Oct 2012, 06:50
by Tiaris
Yellow bodied Stars are a combination of the Fawn (autosomal recessive) and Cinnamon (sex-linked recessive) mutations.

Re: Yellow Starfinches

Posted: 20 Oct 2012, 07:11
by Stavros01
Tiaris wrote:Yellow bodied Stars are a combination of the Fawn (autosomal recessive) and Cinnamon (sex-linked recessive) mutations.
So it is impossible for a bird be split to yellow correct??
And if we cross a yellow X yellow, what is going to born??
And what do we get with, pfor exemple cinnamon X yellow or fawn os classic X yellow??

Tiaris, is it possible to post a picture of a fawn star finch and a cinnamon star finch??
It is because we may have diferent denominations in Portugal...


Regards
Gustavo

Re: Yellow Starfinches

Posted: 20 Oct 2012, 12:06
by Tiaris
It is possible to get normal phenotype Stars split to fawn & cinnamon in males & split to only fawn in females.
The only "split yellow" birds I use for breeding YBs from are Fawn split cinnamon cocks which I pair to Yellow-bodied Hens (& sometimes to fawn hens).
I also sometimes pair a YB cock to a fawn hen.
You cannot get hens split to the cinnamon mutation as it is sex-linked recessive.
I think in Europe the bird we call cinnamon is called an isabel. Our fawns may be called dilute in Europe (not sure on this one though).

Re: Yellow Starfinches

Posted: 20 Oct 2012, 12:11
by Tiaris
I could try for a fawn photo a bit later but I don't have any cinnamons. There is considerable variation in the degree of dilution in Australian stocks of the fawn mutation and mine are less diluted than most as I like to select for prominent spotting & bright yellow belly colour which more dilution tends to fade.

Re: Yellow Starfinches

Posted: 21 Oct 2012, 03:02
by Stavros01
Ok, Tiaris i think i understand.
But i do not have a back up to suport for what i have here.
I do not no what this couple is: cinnamon or fawn or any oyher mutation, if it exits.
What i call to what i have is pastel but i do not no if this is a mutation. Pied they are for shore.
I will try to take some pictures of this couple. They have 3 chicks and they are pied for shore to.


Gustavo

Re: Yellow Starfinches

Posted: 21 Oct 2012, 03:05
by Stavros01
And a genetic forecast, does it exists??

Best regards

Gustavo

Re: Yellow Starfinches

Posted: 21 Oct 2012, 06:31
by Tiaris
They are both dilute-bodied mutations but the head colour remains apparently unaffected. Pastel is the same or very similar at least to cinnamon. If there is no isabel or other dilute-bodied mutation available to you, then you cannot go any further. Pied is very different to both fawn & cinnamon.