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Good Morning, beautiful OFs!! :frow




Micro, I think you may be thinking of sizzle/frizzle with the lethal gene.

I think what I've read say that they have a dilute lethal gene from their breeding connection with Japanese bantams.

Hi everyone. Continues to be busy here. We spent much of yesterday in the timber convincing a tree that we were trying to fell to go down gracefully. It wouldn't. We wanted it to fall to the north west, it wanted to fall to the southeast. It took most of the morning but we finally got it down on the ground. Silly thing sounded like an explosion when it finally gave up the battle.

Most of my spare time is being spent studying watercolor techniques. It's been so long since I did watercolors that I've forgotten everything I knew about it. So I'm doing on line tutorials on YouTube.

Hope all you fathers had a great Father's Day yesterday.

I'm enjoying all the new chick pictures.
 
araucana have one related to tufts.

Abstract
The lethal effects of the ear-tuft trait of the Araucana chicken are reported and the genetic basis of its inheritance is verified. The ear-tuft (Et) gene acts as an autosomal dominant with reduced penetrance in heterozygotes. This study gave two estimates of reduced penetrance, 4 and 14 percent. Homozygotes die during 17–19 days of incubation, although a few may hatch. Most of these die within a week, but occasionally an “escaper” will live to maturity; one such Et/Et individual was verified. Heterozygotes also experience increased embryonic mortality at about 20 or 21 days of incubation. In this study the average embryonic mortality among heterozygotes was 41.6 percent. Posthatch mortality also was significantly greater among tufted chicks than among nontufted chicks.

Explains why my lone Araucana's eggs all quit within the first week of incubation.

It's a shame. She's a wonderful hen and excellent layer. She has the softest feathers I've ever felt on a chicken and her eggs are a pale blue green color.

I've tried to incubate 4 of her eggs on different occasions and all turn out the same.
 
I think what I've read say that they have a dilute lethal gene from their breeding connection with Japanese bantams.

The only lethal gene I've ever seen referenced in regard to Japanese Bantams is the Creeper gene, and the only time I've ever seen the term "dilute lethal" is in reference to a particular gene in mice that causes dilution of color. I suspect that the people who are saying this about Seramas are confused; certainly, their terminology is.

Explains why my lone Araucana's eggs all quit within the first week of incubation.

I've tried to incubate 4 of her eggs on different occasions and all turn out the same.

Is your hen being bred to an Araucana rooster? Even if she is, the odds of both of them being homozygous for the tufted gene are incredibly small; if they are normal birds, the odds are that most of their eggs have at most one copy of the tufted gene. Of course, 4 eggs is a very small sample group; you could just be incredibly unlucky and have chosen eggs that were all from that approximately 25% that are homozygous. But, since your eggs are quitting during the first week, and the homozygous tufted eggs quit during the third week (17 to 19 days), I think you need to look for another cause. :idunno
 
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@Bunnylady, this is what I read on the seramabantam.com site:
9. The Serama carry a 'diluted' lethal gene from the Japanese Bantam Ancestry, causing 1% to 2 % of embryos to develop fully, but fail to hatch or the chick dies within 24 hours of hatching. The Incubation period for Serama eggs is 19-20 days. At the normal incubation temperature of most breeds of poultry. See Breeding Serama.

I was thinking about getting some Serama's from an Amish construction worker we had hired but decided not to due to their susceptibility to Marek's disease. He told me I could have all the eggs I wanted. Naturally it was raining soup and all I have is a fork....and Marek's disease.
 

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