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Discussion in 'General breed discussions & FAQ' started by josh44, Jul 18, 2011.
What Happens when you breed a BB Red Roo to a Blue Hen ???
Assuming bb red is pure homozygous, and so is the blue, you will get half solid blue, half solid black. The males will have red leakage. Hens will be solid blue or black.
You'd probably end up with a nice mix of colors, some solid and some not. You could end up with some blue in the coloring, but a blue hen will carry 1 blue gene and 1 black gene (if I remember correctly), so whether or not you get any blue will depend on whether any of the chicks inherit the gene for blue from her. You could potentially end up with some nice red/blue color combos.
I bred a black tailed red rooster to a self-blue (lavender) hen this spring, and I ended up with a solid black cockerel with gold accents on his neck and around his tail feathers. If I understand how lavender works (and I'm not sure I do completely understand. lol!), he should be a carrier of the lavender gene, so if I breed him back to his mother, there should be some lavender colored chicks from that hatch, along with some black and probably other red/gold/black/lavender combo colors. I think that's how it works anyway.
Would it be Possible to get Blue Brested Red From thies Cross ?
BB Red Roo X Blue Hen
Quote:Not possible, as Black Breasted Red, based on eWh, eb, e+ are recessive to E or Er wich are what 90% of self black birds are made of, except some black Wyandottes that have yellow leggs are based on eb with Alot of black enhancers...
Quote:Not on the first cross.
If you cross a B.B. Red male over a Blue female there F1 offspring would be Black and Blue now if you would take the F1 Blue females and cross them back to there B.B. Red Father then there offspring would be Black, Blue, Blue Breasted Red and Black Breasted Red.
In the chart Blue Breasted Red is Blue Red -
Quote:I agree with Chris but I believe it would take another cross to eliminate the extra black pigment from the offspring. It just depends on the genes found in the blue hen. It could even take a 4th cross to eliminate extra eumelanin ( black pigment) in the females.
BB Red Roo X Blue Hen= F1 blue and F1 black
BB Red Roo X F1 blue pullet= BC1 dark BB Red and BC1 blue breasted red and others
BB Red Roo X BC1 blue breasted red pullet = good BC2 blue breasted red and others
Black is actually a combination of genes. There is no black gene.
Black = either extended black (E) or Birchen (E^R) so the birds are E/E or E^R/E^R or E/E^R these alleles (genes) give the bird its primary color (basic black). To make sure the birds are solid black the birds usually carry melanotic Ml/Ml and the pattern gene Pg/Pg also; these genes add more black to the males to insure that they are solid black. Birchen females need melanotic and pattern to be a solid black.
Blue = one blue gene (Bl) dilutes the visual black to a visual blue color. The pigment is not actually blue; it is actually black but appears to be blue. The bl+ allele that is paired with the blue gene is recessive and does not effect the color of the bird.
Good job on the lavender genetics. Lavender is a recessive gene so it takes two of the lavender genes to change the visual black to a visual gray/blue color.
Quote:Thanks for the lesson on black , and I'm glad I wasn't completely off in my understanding of how lavender works.