"They require less than half the amount of water needed by a cow or a horse, making them more drought tolerant" - it follows from the article that pigs help to conserve water
My pigs love to splash water out of their trough or tip it over so they can play in it. In hot weather, pigs will lie in mud to stay cool, and they really suffer if they get too hot.
So while pigs may drink less than cows or horses, they may use more water to stay cool in arid regions without good shade. I doubt that had anything to do with the taboo, though.
So while pigs may drink less than cows or horses, they may use more water to stay cool in arid regions without good shade. I doubt that had anything to do with the taboo, though.