leucistic or albino?

[Lacy Duckwing]

I found an article on leucism: https://www.avianreport.com/bird-leucism/

Interesting and cool both at the same time isn't it?

 

[tielie135]

that is so cool! but on my girl she has no pigmentation in her skin, legs, or beak. that desaturated yellow/ pink is often the colour of extremities on true albinism. she has all of the traits but the eyes. it is really strange.

 

[nicalandia]

leucistic or albino? The bird on the picture is neither, it's a recessive white at the c locus(c/c), There are two albinism in chickens, autosomal and sex linked. So far Leucism is not a properly defined mutation in chicken, the general description is: "Leucism is a general term for the phenotype that results from defects in pigment cell differentiation and/or migration from the neural crest to skin, hair, or feathers during development."Leucism is a general term for the phenotype that results from defects in pigment cell differentiation and/or migration from the neural crest to skin, hair, or feathers during development."

The closest we have to Leucism in chickens is the Tyrosinase-Independent Recessive White (mo^w) which is an allelic mutation(one of the many) of the mottling allele.


Endothelin Receptor B2 (EDNRB2) Is Responsible for the Tyrosinase-Independent Recessive White (mow) and Mottled (mo) Plumage Phenotypes in the Chicken
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0086361

 

[The Moonshiner]

This reminds me of breeding legbars back in the day.
Myself and to soon find out others as well were breeding away with birds of known genetics (or at least we thought) and a few generations in all of a sudden these little white chicks started popping up in hatches. We were all probably suprised and curious where or how were they happening.
They too were recessive white that had been hiding for generations.
Funny what we didn't want to see back then has now become a sought after thing.
It would be easy to test breed that hen and see whats up. Breed her to a known recessive white rooster and see if she produces white chicks and breed her to a rooster that is known not to have recessive white and watch her produce no white chicks.

 

[tielie135]

leucistic or albino? The bird on the picture is neither, it's a recessive white at the c locus(c/c), There are two albinism in chickens, autosomal and sex linked. So far Leucism is not a properly defined mutation in chicken, the general description is: "Leucism is a general term for the phenotype that results from defects in pigment cell differentiation and/or migration from the neural crest to skin, hair, or feathers during development."Leucism is a general term for the phenotype that results from defects in pigment cell differentiation and/or migration from the neural crest to skin, hair, or feathers during development."

The closest we have to Leucism in chickens is the Tyrosinase-Independent Recessive White (mo^w) which is an allelic mutation(one of the many) of the mottling allele.


Endothelin Receptor B2 (EDNRB2) Is Responsible for the Tyrosinase-Independent Recessive White (mow) and Mottled (mo) Plumage Phenotypes in the Chicken
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0086361

This reminds me of breeding legbars back in the day.
Myself and to soon find out others as well were breeding away with birds of known genetics (or at least we thought) and a few generations in all of a sudden these little white chicks started popping up in hatches. We were all probably suprised and curious where or how were they happening.
They too were recessive white that had been hiding for generations.
Funny what we didn't want to see back then has now become a sought after thing.
It would be easy to test breed that hen and see whats up. Breed her to a known recessive white rooster and see if she produces white chicks and breed her to a rooster that is known not to have recessive white and watch her produce no white chicks.

but the strange thing is that I have produced 50+ chicks from the same two parents and have never gotten anything like her. also i have hatched 100s of chicks from that same roo (to different moms) and never have seen a white one. honestly not even one with splashes of white? that is why i was wondering if it is a chance genetic mutation?

 

[nicalandia]

50 is really not alot. You should have hatch abot 12 already but with lows numbers You may have been just unlucky

 

[The Moonshiner]

I agree its against the odds to hatch that many chicks before producing one like her. But it is just that. Against the odds but not impossible.
As far as it being a spontaneous genetic mutation. IDK maybe I just think it would be a different mutation that caused it. IDK how rare it is to get a spontaneous mutation but to have all the mutations there are it must happen.
There are many genes that turn color off in chickens and produce what we know as the color white.
I do know that recessive white does pop up a lot of times in different breeding groups. Lots of times they get labeled as sports and not much thought is given.
For me recessive white is the most common and obvious answer. Albinioism would be about the rarest. Thats all just my thoughts and I usually go with the most obvious over the rarest if something doesnt point me in a different direction.

 

[The Moonshiner]

50 is really not alot. You should have hatch abot 12 already but with lows numbers You may have been just unlucky

Lol. I agree.
I do projects where the odds aren't that against me to hatch a certain pattern. But off course when there's a few options and only one in looking for it always seems like I hatch 10Xs as many as the odds say before I get one.

 

[tielie135]

50 is really not alot. You should have hatch abot 12 already but with lows numbers You may have been just unlucky

yeah, I guess so, but I cannot hatch any more of her eggs sadly as the mom (the one we are suspecting) passed on recently. we are starting to think the mom was our hen little red as the body shape and size matches her a lot more closely. (the other one we were suspecting is much smaller/ bantam size and more short squat and round.) i was saying 50+ as i didn't know what hen it was from but if this is the case it is probably closer to 75+ eggs hatched from her. also we know that this mom had several genetic issues that caused portions of her chicks to die within the first week or two (that is why there isn't that many from her) her chicks often had strange deformities (although no other chicks were white) so i am wondering if the lack of pigment is another deformity from her?