Definition: Routine analysis of feeds; Water and its physiological role; Digestion and digestibility trials; Measures of energy value of feeds and energy partitioning; Carbohydrates: Classification, digestion and rumen metabolism; Proteins: Classification, digestion and metabolism; Measures of protein quality; Lipids: Classification, digestion and metabolism; Minerals: Classification, Physiological functions, and deficiency symptoms including disorders specific to lactation; Vitamins: Classification, physiological functions and deficiency symptoms; Physiological processes requiring energy: