Any older birds, absolutely....hatchery chicks, not so much.
But I keep them in the brooder in the house anyway, if anything will 'immunize' chicks with a chunks of sod from my run starting the second week.
BYC Medical Quarantine Article
Poultry Biosecurity
BYC 'medical quarantine' search
Meaties like Cornish cross should be butchered at about 8 weeks for a tender bird.
Harvesting 1 a week for whole or half year is really not a great idea, IMO.
Better to have freezer capacity to do 2 batches of 25 or so twice a year.
Have you perused the meat bird section for research?