Im wanting to raise sum broilers. Im trying to figure out the best way to do this. I have marans, standard cochins, and a few dual purpose hens we have just for eggs. Marans are considerd a dual purpose bird from what ive read. I have heard of the cornish rocks. Crossing a cornish to a white rock. We purchased a few of these last year. We were trying to feed them less protein and raise a pair to produce more. Well, they still got to big, heart attacks, and just have one left. I was wondering if anyone knew what would come out of a cornish roo X with a marans hen? Would it be ready to eat at 8wks like the cornish rock crosses? I also have 1 rhode island red, and 2 buff orpington hens. Would one of those breeds b better to cross to the cornish roo to produce the fast growing meaty birds im looking to produce? I havent got a cornish roo yet. Im waiting to see what kind of cornish roo is best for this cross as well. All comments and info will be greatly appreciated. Thank you.