Hi,
I am also new to this game and have 30 Cornish Cross. They are 4 weeks now.
I started them on food 24/7 (also Blue-Seal) but this week, due to two chicks not being able to walk, I have started taking their food away at night and only putting it down in the morning.
The difference in the birds is amazing. They are no longer just sitting there once they have eaten. They are running about and seem much happier.
Last week I moved them out of the brooder into a barn with an outdoor enclosure. I still have the heat lamp available to them so if they get cold, they have heat, but they can also move away from it if they wish.
The indoor part of their space is covered with pinewood shavings and they have access to a grass area outside, which I only open up to them on the warmer, dry days. I am in NY, we are not having the best weather for the time of year.
The two chicks have been separated from the flock and although they can not walk, they are doing much better. I have to give them water, but they are feeding themselves. I am waiting for my horse vet friend to come over with some penicillin to see if that helps. I am also going to try the apple cider vinegar in their water to see if it make a difference.
Hope this helps.... I have heard to be careful about over feeding these birds as they don't seem to know when they have had too much... it is not their fault, it is part of the breeding, so we should be responsible and think a little for them!
Have fun