Breeding really good blacks does require the RED gene to enhance the Black with green sheen. I've noticed that true Black Silkies are getting rare now that the craze for BBS has gotten started. Particularly in a Silkie , due to being able to see all the under fluff, the difference between a true Black, and a Black from a BBS pen, is obvious.The true Blacks are BLACK to the roots, with no blue under fluff showing. BBS breeding must be based on birds carrying SILVER, not RED.Chicken genetics are so all over the place...things will pop up way down the line ..I have a feeling somone bred the whites I have into blks with with what you are talking about - gold gene....there is a very good old book free for your kindle or nook at cornell free library called hubbards poultry secrets..he was so knowlagable and knew what to breed back to what and if you do it wrong you will get this...a great read for any orpington owner..After I hatch some whites, and buffs, I am going to borrow the brit hen and hatch a patch of white over her to see what happens..they carry gold gene but silver might be under there..Vickie will kind of help me watch this and see and coach me along..harry pops me a few tips too.
I have a freind who did exactly what Sarah just said and bred the blk with gold gene to blue and holy brown leakage!! the offspring were a mess..not sure how long it would take to clean that up or if he even could..the type was very good on the birds but the color was horrid...
My friend who has been breeding top australorp for many years. for the first time he got a DQ...the judge found a stub, he said he never ever looked for a stubb because in 40 plus years he had never seen one..he was a little shocked when the judge showed him...so things like this kick up ..he sits on champion row just about everywhere he goes with those birds.. interesting how something can just pop up like that..as for me, I need to clean up some yellowing in some whites..i am afraid of using the blacks, the right black would do amazing thigns, but wich blk is the correct black?