* "Pigs" could refer to specific pigs in a particular situation: For example, if you're thinking of a specific farm or story, pigs might have been used for specific tasks like rooting up the ground, which could be indirectly helpful during harvest.
* Pigs are generally not used for traditional farm work: Unlike oxen or horses, pigs are not typically strong enough or trained to pull plows or carts. They are primarily raised for meat.
* "Help" could be interpreted in different ways: Pigs might unintentionally "help" by eating weeds or pests that could harm the crops.
To get a more precise answer, you need to provide more context:
* What story or situation are you thinking about?
* What kind of harvest are you interested in?
Let me know more details, and I can give you a more helpful answer.