The losses will vary, depending on a lot of things. Birds from one hatchery may do better than birds from a different one. Weather matters, as does food and heat. If they are warm and dry, with proper food the first 2 weeks, or until they're well feathered, they do ok. If you overfeed, you're more likely to start losing them to congestive heart failure as they get bigger. Many recommend 12 hrs with food, 12 hrs without. Mine (except one really disastrous batch) did well with just not having lights after dark, so they couldn't see to eat until morning, and they'd sleep while it was dark, like normal chickens. The disastrous batch, we had a killer heat wave, 9 dropped dead from the heat, while the dual-purp and mixed breed birds were just fine.
They don't need vaccines, they aren't going to live that long. You don't need a $1,000 pre-built coop, you can make one yourself, for cheap. Maybe post a request for photos of meat bird housing that folks have made out of this and that. You'll get some great ideas that way.
Never let them run out of water, don't let them get chilled, or overheated, start restricting food at about 2 weeks or so, you probably won't lose very many. I like to start all my birds with poultry vitamin supplement in the water, 1/2 tsp. per gallon. A little acidophilus powder in the feed the first week helps, too, so they have good intestinal flora. Make sure they get the right feed, don't skimp on the protein. I never feed medicated feed myself, but that's up to the individual.
I no longer raise broilers, but if I still were, that's how I'd be doing it.
They don't need vaccines, they aren't going to live that long. You don't need a $1,000 pre-built coop, you can make one yourself, for cheap. Maybe post a request for photos of meat bird housing that folks have made out of this and that. You'll get some great ideas that way.
Never let them run out of water, don't let them get chilled, or overheated, start restricting food at about 2 weeks or so, you probably won't lose very many. I like to start all my birds with poultry vitamin supplement in the water, 1/2 tsp. per gallon. A little acidophilus powder in the feed the first week helps, too, so they have good intestinal flora. Make sure they get the right feed, don't skimp on the protein. I never feed medicated feed myself, but that's up to the individual.
I no longer raise broilers, but if I still were, that's how I'd be doing it.