Applejack raises pigs at her farm. Why?
I feel like it would be for truffles as pigs are commonly used for sourcing those or they’re just pets/comfort animals that are tradition to her farm/family.
Since the use of “seafood/meat” in the show isn’t a thing/allowed it makes more sense that it’s likely for truffles or comfort so no they’re not exports to other creatures/food.
It’s becoming more common now for people/animal lovers to have farm-based/harvest animals as pets/comfort animals now rather than just cats or dogs instead of just raising them “for food/resources.”