Cornish Thread

[sambat]

Big medicine would this be considered double laced? She is the one with most defined feathers of the ones I have

 

[big medicine]

Big medicine would this be considered double laced? She is the one with most defined feathers of the ones I have

I would think so.

 

[sambat]

Ill make sure to take photos at the show of the cornish and post them here for all to see

 

[CanadianBuckeye]

Sambat, great! Looking forward to seeing them.

 

[big medicine]

Here is a description on the Jubilee Indian Game out of J. Batty's Poultry Color Guide, illustration based on the portraits by Charles Francis.

Good opportunity to discuss the two different types of white found in the Cornish breed, and how they differ.

White laced red (single laced) and jubilee (double laced) are both examples of dominant white, which mainly affects only the black part of the feather, leaving red largely intact. The presence of dominant white effectively turns a dark Cornish into jubilee.

Being a dominant trait, it only requires a single copy to show itself in the colorization of the bird. One possible drawback to this is that a one copy dominant white bird will only pass the trait to 50% of its offspring. So when breeding two single copy birds together will still produce 25% dark 0 copy chicks, 50% white trimmed 1 copy chicks, and 25% white trimmed 2 copy chicks.

As fowlman01 stated, good white laced reds likely all posses 2 copies of dominant white, as there is no other single laced variety of large fowl Cornish to outcross to. Where as jubilee and dark are both double laced.


The other type of white is recessive as found in white Cornish. Being a recessive trait, it requires 2 copies to show itself. A 1 copy bird will show no outward indication that it carries it.

The other main way that recessive white differs is that it is much more effective at covering red as well as black. I have heard it described as the presence of 2 copies of recessive white acts almost like a switch, blocking pigment development. I suspect the vast majority of white Cornish large fowl are genetically dark Cornish with the pigment turned off, I know Dad's were.

Two recessive white birds (as they are 2 copy carriers) can only produce white chicks when bred together.
A 2 copy recessive white bird bred to a colored bird will produce all colored 1 copy chicks.
Two colored 1 copy birds bred together should produce 25% white 2 copy chicks, 50% colored 1 copy chicks, and 25% 0 copy chicks.

 

[CanadianBuckeye]

Is it true that blue is also lurking in the Cornish genome?

 

[JRNash]

I'd love to see TEETH

 

[big medicine]

Is it true that blue is also lurking in the Cornish genome?

Well there are blue laced red Cornish bantams. Good ones are probably just slightly more common than unicorns.

Seems to me, way back somewhere I may have heard or read, that it was thought some old strain of white laced reds may have also carried blue, rumored as an attempt to help keep the lacing clean. Maybe someone else can substantiate this.

Other than maybe some mad scientist types playing around with colors, that's about all I'm aware of.

 

[CanadianBuckeye]

I'd love to see TEETH

? Teeth?

 

[JRNash]

Big old alligator chompers