The kunekune is believed to have descended from an Asian domestic breed introduced to New Zealand in the early 19th century by whalers or traders. They differ markedly from the feral pig of European origin known in New Zealand as a "Captain Cooker". The native Maori people of New Zealand adopted kunekune: the word kunekune means "fat and round" in the Maori language.

Where do kune kune pigs come from originally? OK. Let's think. My stream of consciousness:
The relevant sentence in the passage is: The kunekune is believed to have descended from an Asian domestic breed introduced to New Zealand in the early 19th century by whalers or traders. The answer is an Asian domestic breed introduced to New Zealand in the early 19th century by whalers or traders.