From past experiance I know that the Cornish X is a termanl breed. I would like to do some crossing with them and my barred rocks.. however.. how do you keep the darn things alive long enough to breed? And would you want to hold back a rooster to breed the Barred Rock hens? or the Hens to be bred by the Barred rock roo? Out of curiosity I did hold back a hen a while back and she did live to lay a few eggs.. then died.. as they will if you don't butcher them like you are supposed to.. anyone know a solution?