No, I don't believe there's anything wrong with killing animals for food, I just like my dog more as a pet. I don't believe there's something morally wrong about killing one's pet for food, either.
You wouldn't much like the taste, or the act of it?
As an analogue, I might have a car I like. The car could be worth more to me than its fair market value because of an emotional attachment, and that may mean I prefer not to sell it. If I'm in dire need of money, however, I'd probably sell it anyway.