
wow...how long is a piece of string? as we say here in England!
Firstly, I doubt you could do it profitably unless you are looking at a huge commercial unit of thousands of birds.
I wasnt sure if you meant it was just for your own dogs consumption or if you were planning to supply others?
If its just for yourself I guess you need to calculate how many birds you require a month. I know absolurley nothing about barf, but I'm working on an average dog eating say, 1 chicken a day.
Firstly, do you want to buy fertile eggs and hatch them under a broody hen or in an incubator? Or, do you want a cockerel to produce your own fertile eggs? Bearing in mind a hen only incubates eggs during the summer months, you will either need a very big freezer, or an incubator! 1 hen would sit on approx 10 eggs & successfully hatch approx 8 or9 chicks. You may be able to repeat 2 or 3 (max) sittings in one season. Therefore to feed one average sized dog for a year you will need about 24 hens, all of which need to produce fertile eggs & hatch them.(unlikely to happen)
Now hens are curious creatures & its sods law that the ones that lay eggs in vast quantities are not usually the ones that go broody! You may therefore have more success with a laying breed and an incubator. however in another twist of fate...laying breeds are not usually table birds, so they will be thin scrawny egg machines! A happy medium may be called for...maybe go for a larger plumper table breed that also lays eggs...not in great quantities, but something like a maran or Rhode Island maybe?
Another idea would be to contact your local egg producer/hatchery & ask to buy all their day old chicks (males) as they are normally slaughtered after hatching. You could probably buy up a thousand DOC's and rear them under a brooder (heatlamp etc). That may be your cheapest method with highest survival rate.
regarding space...well do you want them housed free range pecking in the grass for insects etc or housed in closed sheds? If the latter then you may as well buy your barf chickens from a factory!
If the former, then you will need a few acres!
Another thought is two seperate units..one for eggs & one for meat. there are many suitable hybrids on the market to cover both utilities if you want to do it on a big scale. ie ross table whites for meat and columbian black tails for eggs.
OR you may want to start off with hybrid layers and after 12-15 months (their maximum commercial yield period) you can slaughter them for meat, albeit a little tough/scrawny but Im not sure how fussy barf dog are!? :)basically space etc depends entirely on your set up, ie free-range, sheds etc.etc.
let me know how you get on
sam