Ключевые слова: agricultural, agriculture, animal, baby, barn, birth, breast, breeding, cute, domestic, family, farm, farming, farrow, fat, feeding, food, group, growth, hog, horizontal, hungry, indoor, large, little, livestock, mammal, many, meal, milk, mother, nature, newborn, nurse, nursing, pig, piglet, pigpen, pink, row, sleeping, small, sow, sucking, suckling, swine, together, udder, young,