The rose comb was preferred and the single-combed birds were discarded as culls.
He should have a rose comb, a well-feathered tail, and a proud lively carriage.
If a bird with a rose comb is bred to one with a pea comb (fig. 23), the offspring have a comb different from either.
Diagram to illustrate the nature of the F2 generation from the cross of rose comb pea comb.