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First, there are phenotypes and genotypes. And toss in that different countries sometimes have different names for the same variety. Brown red is gold birchen: E^R/E^R s+/s+. Birchen is both a variety name and also the name of a major allele. Laced is the phenotype of either black or one of...

From the first cross you would get all mille fleurs split to lav. Visually it will be mille fleur. The only difference between porcelain and mille fleur is that porcelain has two copies of the lavender gene (one inherited from each parent). If you take all these offspring and breed them to a...

Quote: If you only have the one dun, breed to black. Otherwise, breed dun to dun. The dun gene works like the blue gene: 1 copy makes chocolate, two copies make khaki. Do you have a photo showing the whole bird?

Quote: Looks dun, not lemon to me. Lemon is a term that can mean a number of different things. In lemon blues, it is simply gold; in other varieties, it is a diluted pale yellow. There are a number of different pheomelanin diluters, and they seem to produce somewhat different hues. Henk...

I would suggest more than one thread for genetics about d'uccles. Ideas: current projects, mille fleur pattern and its variations, non-mille fleur patterns Maybe more. An occasional chatty comment in an on-topic post is one thing; many, many posts that are nothing but chat cause the topic to...

I think the "problem" with this thread is that it is an ongoing conversation, not a discussion of a specific topic. Instead, it veers of on random tangents rather than focusing. D'uccle genetics are not different than oegb or silkie or wyandotte genetics. If it were a discussion of mille...

Quote: In either case you will also get birds who are not good prospects, in that they will not inherit the correct number of necessary genes.

Quote: There are several genes that are incompletely dominant. In specific, to what trait are you referring?

Quote: If I understand you correctly, it is a problem caused by or related to the lavender gene. Sonora, Isn't this close or similar to the same gene (in the lavenders) which causes/prevents little or no beards in the roo's?? I've noticed it in my own birds, the lavy boys have a tendance to...

Quote: If I understand you correctly, it is a problem caused by or related to the lavender gene.

Quote: I disagree. Many genes can be leaky; dominant white is one that can be quite leaky. I don't think there is a way to know whether they are dominant white or splash without either knowing their background or test breeding (based upon only a very tiny bit of black mossiness). And of...

Quote: Is the pun intended ?

I would say two blues and a white, but not certain on the white--too much glare to distinguish any nuances that may be present. As for the lighter blue--notice how its hackle is darker than the rest of its body? That says andalusian, not lavender. (Not that it couldn't be both)

Quote: If you are using splash to make goldenneck, you WANT the washed out splash with few to no splashes. I would tend to think you would not want to mix your golden necks with your blue mille fleurs. However, I am not a d'uccle breeder. Sonoran, that's what I was wondering, are Goldnecks...

Quote: If you are using splash to make goldenneck, you WANT the washed out splash with few to no splashes. I would tend to think you would not want to mix your golden necks with your blue mille fleurs. However, I am not a d'uccle breeder.

Quote: Mille Fleur X (Mille Fleur + lav/lav) = Mille Fleur + Lav/lav I left off the wildtype + for Lav

Quote: Not sure what you mean? Did I overwhelm you, or do you not like what you are hearing?

They will appear to be mille fleur, but carry one copy of the lavender gene. The gene needs two copies present to show in the plumage. If the mille parent was split, hte offspring will be 50% mille fleur and 50% porcelain. rb is recessive black, which is not a specific, identified gene. It...

Quote: See post #2

Quote: A proper buff should be "guinea gold" (gold coin, not noisy bird), not yellow. I've seen color variations from medium cream to the rich 'guinea gold' all referred to as buff. Is there a spectrum chart that identifies the target color areas for each color label (US)? Well, if you...