Ameraucana thread for posting pictures and discussing our birds

I'm going to ask a very beginner question. Why do lavs breed true and BBS blues don't?

Well, actually BBS also breed true, if the definition of "true" is at least 50% (according to new breed/variety approval - that is the bar).

Black x blue = 50% each, which would be considered breeding true.

blue x blue = 50% blue (breeding true), 25% black, 25% splash

Black x splash = 100% blue - this would be the exception
 
I'm going to ask a very beginner question. Why do lavs breed true and BBS blues don't?
Lavender breeds true because it is recessive, as junebuggena said, and with two copies of the gene (lav/lav) it dilutes an otherwise black chicken to lavender. Lavender also dilutes red.
There is no BBS variety or gene. Blues don't breed true because they are the result of an incompletely dominant gene called blue (Bl).
When an otherwise black chicken receives two copies of this gene (Bl/Bl) the bird is a splash. I really think the gene should have been named "splash" instead of blue.
When the chicken is normal or what is called wildtype for this gene (bl+/bl+) it is black. The "+" after a gene symbol means it is the normal or wildtype gene.
When the chicken receives only one copy of the blue gene (Bl/bl+) the black feathers are diluted to blue.
 
Lavender breeds true because it is recessive, as junebuggena said, and with two copies of the gene (lav/lav) it dilutes an otherwise black chicken to lavender.  Lavender also dilutes red. 
There is no BBS variety or gene.  Blues don't breed true because they are the result of an incompletely dominant gene called blue (Bl). 
When an otherwise black chicken receives two copies of this gene (Bl/Bl) the bird is a splash.  I really think the gene should have been named "splash" instead of blue. 
When the chicken is normal or what is called wildtype for this gene (bl+/bl+) it is black.  The "+" after a gene symbol means it is the normal or wildtype gene.
When the chicken receives only one copy of the blue gene (Bl/bl+) the black feathers are diluted to blue. 
Thanks John
 
Lavender breeds true because it is recessive, as junebuggena said, and with two copies of the gene (lav/lav) it dilutes an otherwise black chicken to lavender. Lavender also dilutes red.
There is no BBS variety or gene. Blues don't breed true because they are the result of an incompletely dominant gene called blue (Bl).
When an otherwise black chicken receives two copies of this gene (Bl/Bl) the bird is a splash. I really think the gene should have been named "splash" instead of blue.
When the chicken is normal or what is called wildtype for this gene (bl+/bl+) it is black. The "+" after a gene symbol means it is the normal or wildtype gene.
When the chicken receives only one copy of the blue gene (Bl/bl+) the black feathers are diluted to blue.

I have read this before in other places! This is the first time It clicked! Thank you!
 
You're torturing me again!

Are you bringing him to Edgefield or must I come and get him??

Lucky bird!
hugs.gif

Any chicks out yet? I'm about to head home, and I'm going to torture you with pictures of an incubator you can see in
gig.gif

 
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Any chicks out yet? I'm about to head home, and I'm going to torture you with pictures of an incubator you can see in
gig.gif



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And all this time I thought you were a nice guy! Don't be mean to me - I can "lose" your membership.
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For anyone else reading this post, be assured I would never actually "lose" someone's membership or in any other way jeopardize the ABC, of which I'm so proud to be a member. :)
 
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