If you want to feed raw I suggest you do a lot of research first - the books recommended by Rod's website are very good - and join a group such as Yahoo's Britbarf - their documents about feeding raw are very helpful, but be careful about some of the posts as they are totally dismissive about feeding veg. #see below
Adult dogs need about 2-3% of their body weight in food per day, depending on age and activity levels - mine seem to need 3.5% to maintain their weight as they are very active.
Puppies will require up to 10% of their present weight at about 8 weeks old, tapering down to about 6% whilst they are still growing.
This is a new supplement but looks good as it would be easier than giving lots of different things and struggling with amounts.
http://www.petplus.info/index.htm made by a vet.
I give about 25-30% veg and fruit mix - obviously no onions, leeks, citrus etc.. Sweet potatoes and squashes I lightly cook first. The rest is minced or pureed in the blender. They do also have cooked potato - they love mash!!They have vegetables and fruit in season, I aim for 2/3 of a banana per week for potassium, in 2 portions. Usually at least 2/3 veg and 1/3 fruit, berries in season. Root vegetables soldify poo, above ground veg loosen poo, so you need to find a balance to suit your dog.
Also 1 dessertspoon of natural live [BIO] yogurt per day - 1 tsp for a pup - not the fruit ones.
I obtain raw meats from my local supplier of Durham Animal Feeds - mine have lamb, beef, turkey [I try to avoid chicken as turkeys tend to have a vegetarian diet and better welfare - I would not like to feed battery chicken], tripe [which is great for the stomachs - I particularly give it if they have a stomach upset] In the summer we are lucky to be given locally shot rabbits which I have learnt to dress myself!! I don't feel Cavaliers are capable of dealing with a whole rabbit, so I gut it and remove the head, paws etc. I'm actually vegetarian so find it a struggle but have learnt - they weigh about 1kg after dressing and other wise they just bin them which is a dreadful waste. We've had about 20 this year - If freeze them and ration it out as it's the dog's favourite.
I do occasionally buy better welfare, vegetarian fed chickens, which I mince myself.
They have cottage cheese and raw egg occasionally [my own eggs so I know they are free of salmonella etc], obviously only free range eggs if you are buying them.
They also have oily fish about once a week, mine won't eat raw fish so I lightly cook it - they have tinned sardines, very occasionally tuna [but that can be high in mercury so it's a very rare treat], mackerel, salmon trimmings [Morrison's are good for these, I cook it and then strip of the meat. You can bake the skin on a low heat until dry for a treat] Whitebait - whatever is on special offer or reduced!!Sometimes white fish - if you have a good fishmongers, you can occasionally get trimmings free from them - here it's a fight to get them before the lobster fishermen as they use them as bait!!
There are various companies now supplying ready made diets - Darlings prepared a food specifically for your dog's needs, which is excellent - several board members are feeding this very successfully.
http://www.darlingsrealdogfood.com/
Bones should form around 5-15% of the weight of the diet. Muscle meat, which for raw feeding purpose includes the 'offals' tripe, tongue and heart should be around 60-70%, and glandular organs such as liver and kidney from 10-20%. Mine will only eat this very finely mince or lightly cooked. I hate the smell of kidneys cooking - and one morning when I was doing that, I thought "I would never have done this for my husband - but I'm doing it for my dogs!!!" I give a max of 10% liver/kidney.
Lots to think about...if you are going to do it, you have to do it properly and not just throw them a chicken wing and hope for the best...
If you want to feed chicken wings, use rose pruners [kept for the purpose!] to break the bone into smaller pieces, so they don't choke on it - in the last couple of years several King Charles and Cavaliers have died from choking on chicken wings, sometimes in front of their guardians
You can also give lamb ribs, you might be able to get those free from a wholesale butcher. I give chicken carcasses occasionally, rabbit pices too.
Supplements - Luposan do an excellent bonemeal supplement which we give twice a week,
http://www.luposan.com/en/biomineral.html
Lupoderm
http://www.luposan-arabia.com/lupoderm-product.htm alternate days with Salmon oil
all obtainable from
http://www.markusmuehle.de/en/
who, if after reading all this you decide to go back to kibble!, do an excellent kibble!!!
James Wellbeloved is also very good, then Burns.
Bakers is high in colours and poorer quality ingredients. Orijen seems to very rich and many Cavaliers cannot tolerate it.