
OK - I'll try again :-p
Crumbly stools - due to too much bone in diet. Any fresh bloody flecks or coating on stools could be result of straining or bone 'scraping' the GI tract.
I have BSD - (much bigger than pugs obviously) if they got 3-4 chicken wings each on consecutive days, there would be crumbly stools and/or shards of evident bone. Chicken wings have a lot of bone in them in relation to the RMB rule of them - RMB standing for Raw
Meaty Bones, emphasis on meaty :)
I feed mine mainly lamb breast - most meaty and cartilegde (soft bone type) cut I can find and also chicken thighs rather than wings. I never feed load bearing bones - so even chicken drumsticks or whole legs are a no go with them. Load bearing bones are more likely to splinter IME.
Some schools of thought advocate feeding fruit and veg and others not - not all dogs like them or only like a limited type - however if we follow the 'what they'd get in the wild theory then it follows were they to catch a whole rabbit they'd eat meat, bone, FUR!, AND the stomach contents which would include grass and maybe veg etc :)
All that aside, starting a raw diet without studying the requirements first, especially relating to what is appropriate for certain breeds etc, is becoming very common -
not a good thing IMO.
Should you want to go down this route do some very in depth research, speak to the breeder of your bitch or anyone else in your breed feeding raw (or against it as the case may be) weigh up your research and opinions received and then rethink how best to proceed.
Joining Britbarf is an excellent start as there's oodles of info for those who feed raw, home prepared or a mix of either with and without kibble etc :) No hard and fast rules so nobody 'on their soap box' about the good, bad & ugly of dog feeding (well, not too many :-D )
HTH meantime - please, don't jump in blind.
regards Teri