I am going to raise three Buff Orpingtons as layers, they are about 6 months old now and just starting to lay. I want to raise three meat hens along side them. What are some good/average breeds? - They would need to get along with the Orps - Please state how old they are when they are ready for slaughtering and how much they weight at slaughtering time. Someone suggested Cornish x..... but aren't those considered a really small meat bird? Thank you.