Yep, I get the idea.
But pigs can be fed garbage. So can rats. can guinea pigs?
BTW, the most efficient meat production is ostriches, if I remember correctly. But I doubt a city dweller can raise one by feeding it city dweller garbage.
Y’all wanna be careful about feeding pigs garbage.
I’ve seen pigs fed garbage in one pen, and in an adjoining pen pigs fed grain, alfalfa and so on.
The pigs that got the garbage get aggressive. Real aggressive.
I doubt city dwellers would be prepared for how aggressive larger pigs can become.