A dog is no different to a cow

Even putting aside any emotional attachments various parts of the world have to certain animals over others claiming this is ignorant at best or flat out disingenuous at worst.

Cattle have been bred for consumption, dogs haven't. Even using a more comparative animal like horses results in drastically different meat quality

Modern day cattle have been selectively bred for centuries and shielded from biotic factors to promote a greater mass yield than what you find in wild species. Wild cattle are far more hardy and survive various diseases better, such as Brucellosis. Their meat/milk returns are atrocious however by competitive standards due to the energy budget of the animal being far more heavily skewed towards living rather than pumping out as much mass as humans call for.

Dogs have been selectively bred for companionship in terms of both general social interaction and more specifically hunting/agriculture. They are not an animal with much meat on them as a result because the various breeds humans have cultivated were focusing on other things, namely the ability to hunt down other animals, often very large ones, over long periods of time while still retaining some pack mentality towards the humans rearing them.

Additionally, when raising cattle you do so in a way to minimise injury and damage caused by disease/parasites because as mentioned modern day cattle are shit at doing this themselves since their evolutionary history is artificially devoid of such interactions. Dogs will be in a slightly similar situation vs wild canids however it's nowhere near as bad as domestic cattle experience because if you breed hunting dogs of any kind you still expect them to:

1. Be out in the wild while tracking or retrieving, coming into contact with local environmental factors and contaminants present.

2. Directly interact with wild animals while tracking or retrieving, coming into contact with wild animals which very likely will have diseases/parasites themselves when dealing with birds and mammals because warm blooded organisms are frequently definitive hosts [the ones they reproduce in] for various parasites due to the free body heat going and increased dispersal ranges offered like with birds that can fly.