Silverudd's Blue

[ABQ chicken keeper]

I have never heard of this breed. Can anyone provide facts such as what breeds make up the Silverudd lineage, I gathered the hens lay blue eggs, yearly output, weights, are the hens broody and most of all do Silverudds Blue breed true?

 

[NatJ]

I have never heard of this breed. Can anyone provide facts such as what breeds make up the Silverudd lineage, I gathered the hens lay blue eggs, yearly output, weights, are the hens broody and most of all do Silverudds Blue breed true?

The American Silverudd's Blue Association also has a page that talks about the history of the breed. Wikipedia does too.
https://www.silveruddsblue.org/breed-information
https://en.wikipedia.org/wiki/Silverudd_Blue

Regarding whether they breed true: they should for most traits, but the blue feather color will not breed true. They have the blue gene, and it behaves the same for them as it does in any other breed of chicken. If you breed two blues to each other, some chicks will be black, some blue, and some splash. The black/blue/splash affects any parts that would otherwise be black, not parts that would naturally be some other color (example: any white areas will still be white).