The Olive-Egger thread!

[Peach2u]

lol that's funny!
Thank you! Do you mean his muffs? They're black but he does have the pea comb. I need to study up on some of these genes. It's so interesting. Thanks for that tip.

No his ears not feathers. They are fleshy lobes on the side of the head. Some chickens have huge ones other are just holes in thier head covered in feather. I have found the blue lobes are blue egg layers. I haven't gotten that one wrong yet. When crossing breeds like I have. The 4th generation is a wild card with the EE's and OE's. I got some new Americana chicks this year to lighten up the eggs for next years batch. I got 2 wheaten Americana roo chick and 1 hen. That is always my luck more roos than hens. I am keeping 1 roo and ditching the small americana roo I got last year. The girls are bigger than him and laugh at him. They also out run him. He starts running up on them and they run right for the man of the yard. Who quicky punks down the lil man. Fun to watch.

 

[Manningjw]

@nicalandia was posting about that, I think on the Creme Legbar Hybrid thread. The blue Gene is different between the two breads so it would make super blue egg layers.

I am thinking about crossing my Arakansas Blues(Leghorn and Aracauna crossed) with CLs to see what happens.

If my understanding is correct - the Aracauna was used for the Cream Legbars as well - however in that breed they specifically selected for straight comb chickens who continued to lay blue eggs meaning that the pea comb and the blue egg gene were not inherited together like they normally are - they selected for the 5% that diverged instead of the 95% that stuck together.

From what I read on the Arkansas blue egg layers - they also used Aracaunas so the specific allele involved should be identical however with the Arkansas blue egg layers the pea comb will be inherited along side the blue egg gene 95% of the time when crossing straight comb chicks to them.

I have read a couple of papers referencing blue egg shells in asian breeds as having a different locus involved in the production of the blue egg shell but I haven't ever figured out what breed(s) that was.

 

[Bethel3330]

No his ears not feathers. They are fleshy lobes on the side of the head. Some chickens have huge ones other are just holes in thier head covered in feather. I have found the blue lobes are blue egg layers. I haven't gotten that one wrong yet. When crossing breeds like I have. The 4th generation is a wild card with the EE's and OE's. I got some new Americana chicks this year to lighten up the eggs for next years batch. I got 2 wheaten Americana roo chick and 1 hen. That is always my luck more roos than hens. I am keeping 1 roo and ditching the small americana roo I got last year. The girls are bigger than him and laugh at him. They also out run him. He starts running up on them and they run right for the man of the yard. Who quicky punks down the lil man. Fun to watch.

LOL
Okay, I'll look more closely. I believe they are red but I really haven't paid attention.

 

[ronott1]

If my understanding is correct - the Aracauna was used for the Cream Legbars as well - however in that breed they specifically selected for straight comb chickens who continued to lay blue eggs meaning that the pea comb and the blue egg gene were not inherited together like they normally are - they selected for the 5% that diverged instead of the 95% that stuck together.

From what I read on the Arkansas blue egg layers - they also used Aracaunas so the specific allele involved should be identical however with the Arkansas blue egg layers the pea comb will be inherited along side the blue egg gene 95% of the time when crossing straight comb chicks to them.

I have read a couple of papers referencing blue egg shells in asian breeds as having a different locus involved in the production of the blue egg shell but I haven't ever figured out what breed(s) that was.

There are a lot of conflicting points of view on the breed used for the CLs. Only one lived from the trip and it was used along with other breeds for the CLs. The comb was not described as being a pea comb so it could very well have been a different breed from araucana. There are other breeds in the Americas that have blue egg shell genes.

I really do not know if the cross would change the egg color, but hopefully it could help get double blue genes going so that it would be easier to get the olive green color to be stable. It would be very cool to come up with an Olive color egg laying breed instead of the one generation crosses we are using.

There is a person in California that is using a genetics test to see if the Blue egg shell is present in Roosters. Maybe that person knows if the Gene is different between CLs and Ameraucanas. I will check around to see.

 

[Manningjw]

There are a lot of conflicting points of view on the breed used for the CLs. Only one lived from the trip and it was used along with other breeds for the CLs. The comb was not described as being a pea comb so it could very well have been a different breed from araucana. There are other breeds in the Americas that have blue egg shell genes.

I haven't seen another supposed source for the blue egg shell breed used in the cross. What other breed was suggested? My understanding is south american breed ancestors and European/North American breeds which are derived from them share the same locus for the blue egg gene. With that - they all should behave the same way in terms of being linked to the pea comb. The two traits can and are often separated as demonstrated by pea combed Easter Eggers laying brown or white eggs, and straight combed chickens like the Cream Legbars laying blue eggs.

There are two other breeds which are isolated to China that also carry blue egg genes which according to this:
http://saturn.adarc.org/paleo/site/html/posts/2013-09-10-Oocyan-EAV-HP.html
evolved the blue egg shell gene at a different location via the same ERV. With that, in theory you might be able to get a more vibrant blue if you have the ability to find someone selling said asian breeds which I do not know of anyone state side or otherwise that does.

 

[ronott1]

I haven't seen another supposed source for the blue egg shell breed used in the cross. What other breed was suggested? My understanding is south american breed ancestors and European/North American breeds which are derived from them share the same locus for the blue egg gene. With that - they all should behave the same way in terms of being linked to the pea comb. The two traits can and are often separated as demonstrated by pea combed Easter Eggers laying brown or white eggs, and straight combed chickens like the Cream Legbars laying blue eggs.

There are two other breeds which are isolated to China that also carry blue egg genes which according to this:
http://saturn.adarc.org/paleo/site/html/posts/2013-09-10-Oocyan-EAV-HP.html
evolved the blue egg shell gene at a different location via the same ERV. With that, in theory you might be able to get a more vibrant blue if you have the ability to find someone selling said asian breeds which I do not know of anyone state side or otherwise that does.

I recently saw a map that showed the Genetics and breed migration from their origin to the Americas. They were using it to show how peoples moved. All of the chickens every were came from the same place.

It is an assumption that the breed used was an Auraucana and it is from the description in the breeding notes. The virus that caused the blue gene mutation likely infected more than one breed.

There is also evidence that China migrated to the Americas and took chickens with them, so it is possible that the breed used to create CLs blue egg shell color did come from the chinese gene change.

I would be very interesting to see if the genes are different between the CLs and others.

 

[Manningjw]

I recently saw a map that showed the Genetics and breed migration from their origin to the Americas. They were using it to show how peoples moved. All of the chickens every were came from the same place.

It is an assumption that the breed used was an Auraucana and it is from the description in the breeding notes. The virus that caused the blue gene mutation likely infected more than one breed.

I would be very interesting to see if the genes are different between the CLs and others.

The specific site of insertion - according to the research referenced, is the same between American (north and south) and European chickens who possess blue egg laying genetics. According to the paper, the same type of ERV responsible also inserted itself in a different but closely related section in the Chinese fowl creating the same phenotype and these remained geographically isolated to China. So far, 2 separate ERV insertion points are known. I imagine that they included the Cream Legbar in this research considering it is an older breed.

I FINALLY FOUND IT! The original paper which I am going to save!

Quote:


We have to keep in mind ERVs are not like a normal virus. They insert themselves into the genome of the animal and are passed down to the next generation. When they insert themselves, it is never in the same place each time. Meaning if you find an ERV in the exact same location in two different animals those animals shared a common ancestor that the ERV was inserted into.

 

[Lauravonsmurf]

There is also a Japanese breed that carries the blue egg gene as it lays green eggs. Isbar must also carry the gene as well. I also read some place that this trait just sometimes appears in breeds not known for this egg color, it is very rare but happens.

 

[aart]

No his ears not feathers. They are fleshy lobes on the side of the head. Some chickens have huge ones other are just holes in thier head covered in feather. I have found the blue lobes are blue egg layers. I haven't gotten that one wrong yet. When crossing breeds like I have. The 4th generation is a wild card with the EE's and OE's. I got some new Americana chicks this year to lighten up the eggs for next years batch. I got 2 wheaten Americana roo chick and 1 hen. That is always my luck more roos than hens. I am keeping 1 roo and ditching the small americana roo I got last year. The girls are bigger than him and laugh at him. They also out run him. He starts running up on them and they run right for the man of the yard. Who quicky punks down the lil man. Fun to watch.

Curious to know more about blue ear lobed birds(which breeds) that lay blue eggs.

 

[Peach2u]

Curious to know more about blue ear lobed birds(which breeds) that lay blue eggs.

http://scratchcradle.wordpress.com/2012/07/01/gms1-genetics-of-egg-color/
This is a quick summary of lobes and egg color