Yes, you are still eating your own kind.
I would rather starve that take this route.
I did some looking around and found that animals that have eaten a human are usually killed (tigers & sharks for example). I feel like I've seen/heard reports of food contaminated by human body parts being recalled, but doing a Search

didn't find anything.
I think in this case, how hungry I am and how often the pig is being fed humans vs. a one time feeding and waiting some time before eating the pig would determine 'yay, Bacon!' vs. 'no way, Jose!'.
On top of all this, is cannibalism culturally ok or not?
Dang, this topic has me conflicted between curiosity and 'This Is Very Wrong'. On the other hand, I can't help but feel that Traveller is a somewhat darker view of the Far Future in some ways, so the possibility is there for those who want cannibalism as a part of or in the background of their Traveller game.