Ключевые слова: animal, animals, barn, breed, building, care, clean, country, daylight, domestic, earth, environment, ethical, facility, farm, farming, feed, field, floor, food, healthy, herd, industry, land, life, livestock, mammal, meat, motion, mud, nature, open, organic, pen, pigs, production, raising, resources, rural, source, space, stock, structure, sustainable, swine, system, view, welfare, wellbeing,