Your passion for the Sussex has you all wound up over this thread huh?
The OP was just looking to create the 55 pattern on a different type bird then a leghorn type. The speckled sussex came up then their idea morphed to hopes of creating a new variety of sussex.
All that about the importance of...
The color/pattern in your case is pretty simple and straight forward.
I don't see you having any issues there. You're just wanting to add barring to a pattern that already exists.
That's easy peasy.
Its the type that you will have to get set. That means every other feature about the bird.
As for...
I believe it only has to breed true 50% of the time.
IMO that would hardly make it a breed or variety. I believe the 50% is because of varieties like Blue that won't breed true 100%.
Chickens don't work like that.
If they fit the breed standard then they're that breed no matter whether they're 1/4 or 31/32 or whatever.
They're wouldn't be a variety of the sussex to fit your bird though.
Chickens don't work like that.
If they fit the breed standard then they're that breed no matter whether they're 1/4 or 31/32 or whatever.
They're wouldn't be a variety of the sussex to fit your bird though.
Hmm, because they doesn't want a columbian patterned bird?
Seems they have a goal in mind which isn't about just making something auto sexing but a certain pattern which doesn't include columbian.
Yes you're correct.
Probably have zero luck finding welbars but they would be a great option.
Wellsummer have mahogany so look at them compared to brown leghorn and you can see what mahogany brings into that mix.
Oh and the calculator is great for getting the expected percentages but when it says I have a 25% chance come hatch days it always seems to be more like I get 10% of what I wanted and a ton of what I didn't need at all.
You post reads as if you were saying rhodebars and legbars have mottling and would need barring added.
Guess we're reading OPs goal differently also.
I'm reading it as a speckled sussex as a starting point breed but they want finished product to be same pattern as 55s.
I know rhodebars and in...
You are correct that they are like legbars plus mottling minus cream.
Fast feathering is irrelevant.
As for sex linked silver. GFF sells mostly gold based but also some silver based.
Speckled sussex has mahogany and columbian that you would need to breed out and you would have to breed in...