Joined: Jun 2010
It'll depend on what "method" of raw feeding - prey model is 80:10:10 but from what I gather, BARF tends to have more bone in it.
It won't necessarily be 80:10:10 for every dog but it's a good starting point. You'll soon know if you're feeding too much bone as the poos will be chalky white and you may notice the dog straining a bit too much. You can try to combat this by feeding offal in the same meal (as offal tends to loosen it all up - and you certainly wouldn't want to give your dog one meal of his week's worth of offal as you'd probably have some very loose poo to pick up the next day). Some dogs will be fine with more bone in their diet but IMO it's better to start lower and increase it, than start too high, as constipation can be painful. Again, with offal, you'll know if you're feeding too much because poos will be too loose.
What I do is do a monthly order and get my 80:10:10 ration sorted on a spreadsheet (because 1, I'm a worrier, and 2, my supplier isn't local so I try to get it all right first time so I don't run out mid-month!), I order about 100lbs a month so 80lbs is meat, 10lbs bone and 10lbs offal. I then just grab out whatever I need from the freezer, knowing that it will all balance itself out over the week/month - though I do follow my above tip of offal & bone being fed together rather than seperate meals.
One thing to bear in mind is that bone will have some meat on, some more than others - e.g. chicken wings will be meatier than a bare carcass, but some carcasses have a small amount of meat left on them, some RMBs have more spare meat on them that others, a rack of ribs will sometimes be left with meat between the ribs, etc. Some of the minces I buy contain ground bone too - generally I think the meat on the bone, and the bone in the meat balance each other out as I don't have issues with it. My two will get "pure" meat cuts, e.g. chicken breasts grabbed from the supermarket, and minces that are bone-free but I just keep an eye on the consistancy of the poo and that tells me if the bone content of the diet is too high or not.