A new barley that benefits the environment as well as farm animals has just been developed. “Clearwater” hulless barley is rich in the kinds of phosphorus — an essential nutrient — that pigs, fish and other single-stomached, or “monogastric,” animals can use. That’s unlike grain from conventional barleys, which contains more of the phytate type of phosphorus, the kind that monogastric animals find difficult to digest.