Barnvelders genetics

[Amer]

There are doubled Laced Barnvelders and there are single laced Barnvelders, Double Laced Barnvelders males lack any lacing on the breast(because they are not columbian restricted, just Melanotic and the pattern gene), Single Laced Barnevelders roosters have well defined breast lacing because of the Columbian restrictor Co.

Double Laced eb/eb, Ml/Ml, Pg/Pg. it seems like double lacing is exceedingly hard to obtain in e+ and eWh background.

Single Lacing: eb/eb, Ml/Ml, Pg/Pg, Co/Co. Single Lacing can be expressed in e+ and to a lesser extend on eWh.

Double Laced Barnvelder rooster from source: https://cheshirepoultry.co.uk/blue-double-laced-barnevelder-large-fowl/
View attachment 1835731

I didn't realize Barnevelders came in the single laced variety.

 

[nicalandia]

I didn't realize Barnevelders came in the single laced variety.

Oh the do, and the Blue Laced Barnevelders look just like Single Comb Blue Laced wyandottes, but hey that's just me..!

I am more interested on the double laced genetics, the males are what you call Melanized(hackle,back,shoulders) duckwing/BBR, the pattern gene has little to no effect on males so if you are really interested on how Melanotic works on eb/eb roosters(e+ and eWh) you can use them to visualized the effect.

 

[Mandy19]

The only difference would be the blue mutation(Bl, Bl/Bl being splash and Bl/bl+ being blue), so when crossing Bl/bl+ birds with bl+/bl+ you get 50% Bl/b+ and 50% bl+/bl+, so half will be Blue Laced and half will be gold laced.

 

[Mandy19]

From: https://www.barnevelders.net/blue-laced-barnevelder.html

"The Blue Laced Barnevelder is a sport of the standard type where the black in the lacing of the feathers is replaced with Blue. It is relatively rare and there is often considerable wastage in its production as blue birds do not breed true. I have also found it better to use a blue splash male to breed over gold hens rather than the other way around."

 

[BigBlueHen53]

Um.... let me jump in here to point something out. When you are talking about genetics, it is imoirtant to understand that you will not necessarily get 50% this and 50% that. EACH CHICK has a 50% probability of being either "this" or "that." In any given hatch, there is no guarantee that your hatch will be 50-50.

 

[nicalandia]

There is no guarantee that your hatch will be 50-50.

That is a given when dealing with low number of hatching eggs, but the more you hatch the closer you get to a near perfect 50/50.

We need to take a look a the law of large numbers or in the backyard poultry breeding the "Weak Law of Large Numbers"