Most I've done in one batch has been 45, but I think I can answer most of your questions. Here's a
link to a blog post I wrote on a batch I did a couple years ago, with a spreadsheet of all my numbers and how things worked out.
Can you tell me how were they housed? Were they in movable tractors?
I prefer to tractor mine on pasture. I think it's better for their health. They poo
sooooo much. It doesn't take long before they're wading in it if you don't have a pen you can move daily.
If so, how big was the tractor (measurements)?
My tractor is 8X8.
Here's a pic of it where you can see the set up.
How much area is needed per chick in a chicken tractor?
They say you can put up to 90 CX in a tractor that size. They don't move around as much as normal chickens and they don't pick on each other like normal chickens do either. However, unless you want to have to move your tractor a couple times a day (the poo issue), I don't think I'd put that many in there. Most I would put in mine would probably be 50. I've got 31 in my tractor currently and they have
plenty of room.
How much feed did they consume each week?
On Dumor 24% turkey chick feed up to age 4 weeks and Dumor 20% chick feed to finish, mine consumed 17.84 lbs of feed each on average. Your management practices can greatly effect that though. These were also tractored on pasture.
At what age did you process them?
7 weeks old for the males, 9 weeks old for the females. If you go much past 11 weeks the risk of heart and leg problems increases drastically.
What was the average weights of the broilers?
I only weighed 3 of mine live out of curiosity. They were between 8 and 9 pounds live. I weighed all of them after processing and the average weight I got was 4.92 lbs dressed out.
How many did you lose before process time?
For the first 3 years I had raised them, I lost about 2 or 3 chicks each time, all under 2 weeks of age. This year I've got them on an entirely different feed, a locally sourced whole/cracked grain feed. I haven't lost any this year and haven't had any heart or leg problems with these. Prior to that, I also would have maybe 1 or 2 with leg problems that still made it to processing, but weren't as large as the others.
Hope that gives you some idea what to expect. At least you've got a couple of months to work out all the details.