Are the same pieces of meat involved?

Lots of grocery store meat that you buy "fresh" was killed x number of days ago.

If a dog eats raw meat within a few hours of it being killed, it's a big difference.

How did I come to this opinion? Try freezing a super market steak a few days before the "expiration date." Then unfreeze it a few days after the expiration date.

You'll notice a rancid smell immediately upon cooking.