KEY Assignment Topic # 3041 Nutrients and Nutrition Anna Blight Match the correct nutrient with a feed component Water High moisture corn Carbohydrates alfalfa and clover hays, Fats Dry milk products Match the correct chemical element with its symbol Potassium K Magnesium Mg Phosphorus P Nitrogen N Sodium Na Short Answer What two classes make up the composition of feeds? Concentrates and roughages Which of the two classes would include corn, wheat, oats, and soybean meal? Concentrates What do roughages consist of? Hays and straws, silages, cut green feeds, and grazed forages. Fill in the blank Water is the most important nutrient. Water helps to transport other nutrients. Carbohydrates are a major energy source. The primary energy source is fat, with 2.25 times more energy per pound than any other source.