Cobb 500 broiler crosses

[Legendary ORC]

So has anyone tried crossing a broiler chicken like the Cobb 500 with heritage breeds to create a new fast growing meat chicken which addresses potential flaws associated with the Cobb 500 itself?

I have some Cobb 500 broilers which were rescued from a crate falling off a truck transporting them (most likely on their way to slaughter house). I also have Brahma, Araucana, Ayam Sumatra, Australorps and Orpingtons.

I want to cross a Cobb 500 with an Australorp rooster and also cross a Cobb 500 with a Brahma rooster. Then I want to breed the offspring together.

I am hoping to create a large breasted bird that grows quick and has strong bony frame (like the Brahma) with long legs.

Anyone have any comments or recommendations?

 

[Legendary ORC]

Do you have an update? I have a small group of people that work with me on this exact type of project. We would be honored for you to join and share your experiences.

I have been working on this for years, but using Orpington instead of Australorp. I was VERY successful with Lav Orpington Roo over CornishX Hens then back crossing for 2 generations beyond to original hens.

I now have them offsite being raised while I start the project all over again for academic paper.

cajunvineyards.com/chickens.html (if interested in pictures and more more details)