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hi
I have a question about the blue sumatras.
if blue sumatras throw back splashed chickens, does that mean that they carry the mottling gene?
if so is it wrong to call them splash instead of mottling sumatra.?
if you have more info about the blue color in sumatras and the origin of this color please share , i would like to know how it interact with other color ?
thank you in advance
Blue sumatra can produce mottled (splashed ) chickens. If your cross a black that carries a mottling gene with a blue that carries a mottling gene then some of the offspring will be black mottled white and some could be blue mottled white. A person could produce a blue chicken with white mottling.
Splash is a term used to describe a bird that carries two blue genes- so splash should not be used to describe mottling. Mottling can take two forms- mottling as in the ancona or java; the other form is referred to as exchequer as in the leghorn. These forms of mottling are all on a black or even blue background.
Mottling is also used in making other color patterns like mille fleur and speckled. Some birds are incorrectly called spangled (black on end of feather) when they are actually mottled (white on the end of the feather).
The blue gene will dilute the black pigment on a chicken to a blue or gray color. The blue gene usually dilutes black found on any part of a chicken. So the breast of a black breasted red chicken will be diluted to a blue color by the blue gene- the bird will be blue breasted red. The blue gene does not normally dilute the black in the pyle region or tail feathers of a male chicken.
From what I have been able to decifer off the chicken calculator, it looks like some how if you breed a black mottled to a dominate white bird it causes this reverse mottling called exchequer which from what I have seen in other birds is very similar to what you have in that sumatra. According to the calculator, being dominate white based, blue will have no effect on the color pattern.
Breeding a black mottled bird to a dominant white bird will produce white birds not exchequers. Both the mottling and the dominant white genes add white to a chicken. Exchequers are black birds that are mottled. Some dominant white birds also carry the blue gene to help with any black ticking that may be expressed in the bird.
Tim
Yes Tim,
That's what I thought too on the mottled by dominate white.
However, go to the calculator and put it in....
That's what I was referring to, was wondering why it was showing that
when you put a black mottled in, and cross it to dominate white
the F1's show unicolor white split to mottled
now select the offspring and back cross them on it
the f2's are exchequer colored for some reason (on the calculator) basically a reversed mottled from what we are all use to seeing.
I was confused on this too and was wondering how it was coming up. I always understood that dom white covered all black or blue.
I ran it with blue mottled too, did the same thing.
Then did it with just the exchequer bird to solid black or solid blue, it kept the black white excehquer color, never could get it to "blue" that pattern...but it would then produce some solid blues and solid blacks like Galo is getting from his crosses.
Is this an error on Hinks calculator, or does it possibly explain how Galo got those odd colored sumatras that retain that exchequer color?