Sex link with Sussex & Delaware?

fatcatx

Songster
8 Years
Apr 7, 2013
601
163
217
Northern California
I am trying to get a better understanding of the genes required to make a sex link with a RIR roo. ( I know not all White Rock hens will work since some do not have the silver factor gene.) My preference was to use a Light Sussex or Delaware hen which I believe should work 100% of the time?

RIR X Delaware = Red sex link. Would the Lt Sussex produce a red sex link too?

Could you use a Coronation Sussex hen?
 
Thanks for the confirmation!

Can someone explain why some 100% of some breeds can be used vs. other breeds like the Roc needing the "silver factor"? Is it simply a dominant white vs. recessive white gene?
 

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