Excuse me? Ash content? Look at wild dogs, where is the ash content in their food?
You must have missed this:
This isn't actually true - in the same way humans can use technology and science to optimise our diets for longevity (ie increasing certain amounts of something which is hard to come by naturally), the same can and has been done for animals. Just because it is primitive and 'natural' doesn't mean it is better.
Why don't you go the whole shebang, and not get your dog vaccinated? Where are the vaccinations in the wild?
PS: Do you know what 'ash' is?
Dry food are pushed by vets due to the huge amounts of funding given to uni's/vets by the dog food companies.
I am sure this is what a lot of BARF followers would like to believe in order to discredit what scientists say (in the same way that doctors are in the hands of 'big pharma' in the same way, pushing unnecessary vaccinations, right?).
While dog food companies sponsor some university events (free pens etc) and will visit vet practices to try and get them to adopt their own dog food, do do not 'give huge amounts of funding' to either. Secondly, there are tight corporate controls on the involvement of commercial companies in universities, including any seminars they can give (the same as with medical students).
Thirdly, when vet practices subscribe to a specific vendor, they sell wet and dry food. For many dogs, for example, a wet/dry mix is ideal. Yes, vets have a financial interest in selling dog food, but if you really think that the majority of them allow this to pervade their training and medical knowledge to the extent that 'everyone is in on it', you need a tin foil hat.
Or wait, have I been bribed by the Dry Food Consortium in order to perpetuate a bunch of myths!? I didn't realise!
So I'll base what I feed Max on my experience
Oh great sample size there

Is this the same kind of experience that someone who undergoes homeopathy experiences feeling better?
But nevermind, you wont listen to anything anyone else has to say anyway.
Of course I will, but only if you'll validate your claims rather than perpetuating myths. But really, it sounds like you're the one who won't listen to anything anyone else has to say.
I'm sorry it pains you to hear it, but the BARF thing sells into exactly the same kind of false instincts people fall for when they buy dog food shaped and coloured like peas and carrots, or owners who buy 'dental chews' instead of taking the dog for a proper dental, or when people drink organic certified milk (which doesn't actually have to be organic) - purely to make the owner/buyer feel better, not necessarily what is actually better for them or in your case, the dog.
Lastly, if you really wanted to give your dog a natural diet, you'd feed it largely stripped caucuses and waste, and it'd live for about 5-7 years maximum.