Alaskan is right. I would not breed brother to sister but you can father to daughter and mother to son. I am lucky to have quite a few Dominique lovers around here. I have a small hatch right now and plan on using the pullets to breed back to my roo. I am lucky I only have one Roo in this hatch left. If I dont sell him ...he will go to the freezer.
x2
I rehomed my cockerel after I found out he was not a pullet because he kept mounting his sister. Brother to sister matings do not go well and weaken the strain's immune systems. Father to daughter or son to mother is better - but an unrelated mating is best for hardier resistance. That's just my 2 cents and JMHO.