Quantities are not an exact science as each dog has different nutritional requirements, according to age, build, metabolism and lifestyle etc (much like humans). I wasn't feeding Fern BARF when she was a growing pup so the amounts suggested may not apply. The UK Barf Club
http://ukbarfclub.co.uk/sitemap/ Suggest for every 10kg weight, a dog should eat about 100-150g meat and
twice this
volume in fruit and veg(

).
I found another guide that suggests 20% of bodyweight per week. The BARF books I have suggest far less fruit/ veg than the barfclub. That much fruit/veg would defo give her the runs, but she is a very active dog, and that reduces her chances of getting constipated (raw veggies tend to help keep things 'loose' - providing roughage as well as providing trace elements, vitamins and minerals). She has a small dollop (about a heaped dessert spoonful)of whizzed veg most days, but if I run out I don't panic.
Your pup is still growing so may need a little more (don't just believe him if he 'tells' you he is still hungry though, most cockers will eat until they burst!

) Fern is very active so I am feeding her at the top end of the scale. I am reducing it though as she is starting to lose her waist and has gained over 2 Kilos

.
So, to reiterate, UK Barf club say you should feed approx 102g-154g/day raw meat.
Barf books I have read say your 10.2 Kg dog should have approx. 290g/day. (I include the total weight of the chicken wings I feed in this and add veggies)
This is only a guideline to start. If your dog is gaining weight, reduce quantities, if they are losing weight, then increase.
Confused? I was and then I stopped worrying about it,

.
Whats a ddb