No offence, but wild canids do not just eat meat & bones. I've personnally watched coyotes eat the entrails 1st out of deer. The green tripe is full olf particaly digested plant material, material that dogs canidfs can metabolize.
I'vce also seen the aftermath of wolves hitting a caribou over night and what jackles did to a blesbok in South Africa.
No veggie/fruit/grain is just not true to the natural world.