Topics: Animal Nutrition, water, carbohydrates, monosaccharide, oligosaccharide, lipids, fats, glycolipids, phospholipids, steroids, terpenes, protein, nucleic acid, amino acid, peptide, vitamins, fat-soluble vitamins, Vitamin B complex, Vitamin C, hypervitaminosis, minerals, acid-base balance, enzymes, digestion, metabolism, protein synthesis, carbohydrate synthesis, digestibility, food energy value, food evaluation, crude protein, lactation, food intake, grass, forage crops, legumes, silage, hay, artificially dried forages, straws, chaff, roots, tubers, cereal grains, cereal by-products, protein concentrates, food additives, animal products