
Id be down to the vets to make sure there isnt something more sinister going on.
Then hopefully if all is well, going on a bland diet for a week or so.
Then if you wanted to go back to the raw feeding, do so carefully, starting wtih bland things an da limited range and working your way up to more exciting/richer stuff.
I would use pliers to hang on to wings whilst you feed them, feed dogs seperately so they dont gulp down food, and steer clear of weightbearing bones until they get the hang of both chewing properly and digesting bone.
You can bash bones up by putting the wing in a teatowel and smacking it repeatedly with a lump hammer - or, the kind of grinder you need is the hand wound old fashioned kind, and you will need a bit of muscle to grind chicken wings in them, although i have done it!
If the grinder is the wrong kind, just bung it back on ebay in a weeks time!
Em