So I tracked down Dr. Brigid McCrea at Delaware State University. She heads up The Center for Small Flock Research and Innovation. She also did the research and wrote the paper on Delaware chicken production vs. Cornish Cross chicken production. In broadest terms it says the following:
Delawares reached a slaughter weight of approximately 2.2 KG at 15 weeks and ate approximately 220 KG of feed.
Cornish Cross reached a slaughter weight of approx. 2.2 KG at 6 weeks and ate approximately 100 KG of feed.
There was a lot of other technical stuff, but I was able to glean that much.
First of all I'm amazed there is a center at a university dedicated to helping people like us. Second I'd like to talk to the woman who makes it happen. So I've emailed Dr. McCrea, and she has graciously offered to talk to me on the phone. Does anyone have any questions they would like to suggest?
Apologies! I was so excited by the response from Dr. McCrae I forgot I was posting on a public forum here. Guess I'm guilty of the same stupidity kids are when they post inappropriate pictures of themselves on-line for all eternity. You'd think at 51 I'd know better. I didn't say anything about discussing what Dr. McCrea might say in such a forum, so it would be a terrible breach of confidentiality if I did so. Please forgive my lack of judgement and accept my retraction. I will to keep any suggested questions in mind in case there is a future opportunity for me to ask them with full disclosure. And feel free to kick me in the pants for unwarranted indiscretion.
Edited by AnthNDacula - 1/16/16 at 7:37pm