The fist generation will be smooth feathered. If you breed them to each other or to a Silkie you will get Silkie feathers. Silkie feathering is recessive.
They should all have black skin
The "Ask Anything" to Nicalandia Thread
- Thread starter nicalandia
- Start date
They should all have black skin
The first generation, with a Silkie father and a Brahma mother, should have black skin on the daughters and lighter skin on the sons. (At least, that's what a bit of basic genetics would predict. I've read of some cases where it didn't actually happen that way, but I forget which way it was different.)
Breeding the mixes back to the Silkie should give more chicks with black skin.
Yes, but you will get only a few Isabella chicks compared to how many non-Isabella ones you get.
Isabella needs the lavender gene, which is recessive.
So breeding Isabella to the Buff means all chicks will carry the lavender gene, but none will show it. If you breed those mixes to each other, about 1/4 will show lavender (which turns black into gray and red/gold into a pale yellow.) Or if you breed the mixes back to the Isabella, you should get about 1/2 showing lavender.
To get a proper Isabella color, you need the lavender gene and you also need the right color pattern. So if you breed the mixes with each other, and 1/4 show lavender, probably about 1/4 of those will actually be Isabella (=1/16 of the total chicks in that batch) and the others will have various other patterns. If you breed the mixes back to the Isabella, and 1/2 show lavender, probably about 1/2 of them will actually be Isabella (=1/4 of the total chicks in that batch.)
I see someone else said just what I was going to say:
Last edited:
- Dec 4, 2012
- 34
- 42
- 99
I have figured a better explanation. I've been doing a lot of research on shank colors and white plumages. The hen is blue shanked but totally white. According to my research if she were c/c recessive white, it would give her lighter shanks. This makes sense since I believe that she comes from hatchery stock cross parentage, white d'uccle, crossed into a white booted bantam line. There is also a possibility that she has dominant white, from the hatchery stock or from a golden neck (buff mottled) cross into the line. I believe the male; also pure white is recessive white with white legs. He is probably homozygous for Id gene for inhibition of dermal melanin, although he could be heterozygous. I don't have enough experience with that gene to tell just by looking at him, or from the F2. If he is, the recessive white would dilute the melanin to where it would be hard to tell. SO, long story shortish, I think that I'm looking at one (or possibly both) birds which are carrying recessive white (1 homozygous and 1 hetero, possibly). I believe that I have one bird homozygous for recessive white and one bird heterozygous for it. This is a guess. I also believe that one of the birds is heterozygous for dominant white, (or both could be). After hatching as many chicks from the pair as possible, the outcomes mirror the statistical probabilities of several different variations, but in general it is 50/50 with red leakage, possibly mostly in males but many are too young still to sex. I believe that these birds either are C or c for recessive white and are on an e^b/e^b, e^b/E or E/E background and without other melanizers are showing the gold leakage in the same way as a black bird does without those melanizers, especially in males. The dominant white is covering the E (black) allele phenotype with white but is unable to cover the gold leakage. Also the gold is diluted, which dominant white does.
The harder issue is come up with a breeding plan to try to get the recessive white homozygous and maybe even to eliminate the dominant white? I'm not sure it's doable, or even necessary. I may be forced to do genetic testing, or even doing outcrosses with other colors to attempt to get back to the usual genetics. Usually, white booted bantams have been mille fleur under the recessive white, or at least that is the original recipe based on their long ago history of having those two colors in the breed (at least in the US). There is an outfit in Miami which does testing by blood, eggshell or feather. I haven't heard of anyone using them and a little reticent to trust it. I don't know if the eggshell testing tests the hen or the chick it hatched from. I would guess it is the hen that laid the egg.
The bottom line is that mixing recessive genes for white with dominant white is a risky proposition, especially in rare breeds which are difficult to find (without unknown parentage). It might seem like an easy fix, but it isn't. Without knowledge of the parentage it's a crap shoot, especially with a recessive gene that hides cryptomeres and a dominant one which covers many phenotypical characteristics. DON'T DO IT, unless there is a good reason and unless you know exactly what you're working with.
Last edited:
If you are talking about https://iqbirdtesting.com/
I have used them to test a few chickens for sex and for blue egg genes.
I have not used them for a recessive white test.
Eggshell test: after a chick hatches, they can test the eggshell to tell if that chick is male or female. It tells about the chick that just hatched and left gooey stuff inside the egg, not the hen who laid that egg 3+ weeks before.
I do not know if they can test the shell of a recently-laid egg to tell anything about the hen that laid the egg. If you ask them, please share the answer so the rest of us can learn too.
- Thread starter
- #3,835
White Ameraucana have dark Slate/Blue Shanks. Recessive white based on the c allele has no effect on shank color
I wasn't receiving notifications again.
I've been losing my network connection off, & on the past couple weeks.
Just wanted to let everyone know, why I haven't been here to answer questions.
I've been losing my network connection off, & on the past couple weeks.
Just wanted to let everyone know, why I haven't been here to answer questions.
Wanted to update on my chick that came from my Sumatra hen. It turns out it's a Sumatra, Red JungleFowl cross. It has super deep red leakage, almost not noticable.
What type of genes cause a super deep red coloration? Or is it due to the Extended Black?
What type of genes cause a super deep red coloration? Or is it due to the Extended Black?
- Thread starter
- #3,838
Pictures
Will try to get some later.
Similar threads
New posts New threads Active threads
-
Latest threads
-
-
runny bloody poop, help please- Started by BeccaaStancil
- Replies: 1
-
-
-
-
-
Threads with more replies in the last 15 days
-
-
Please help! Hen suddenly falling asleep while standing, droopy tail! [Edit: Probable Worm Blockage]- Started by Tiffany Wikk
- Replies: 183
-
-
-
-
