Hi there, i've kept table birds 4 two years now this is how i do it.
I buy in 25 birds at 2/3 weeks off heat coz i dont have heat facilities, costs vary hubbards £1.49 each and cornish game cross £2.45 each and French sasso £2.00 each.
I keep them in a house on stilts and in an enclosure 10x5 metres grassed with gooseberry bushes and a large tree.
I have a chap come to despatch and dress the birds ready for the oven, this costs £3 per bird.
I kill the cockerals at around 10/11 weeks and the hens at 13/14 weeks, they are super tasty and each breed is slighty different in taste bloody beautiful, nothing like the tastless supermarket rubbish thats injected with water, yuck!
Hope this helps
Shell from Cornwall.