86 / FIELDS OF INSTRUCTION AL 652-ADVANCED ANIMAL NUTRITION LABORATORY. 3 credits Prerequisite: CY 381. Accompanying laboratory course for AL 651. AL 653-VITAMINS. 4 credits Prerequisite: Organic chemistry. Historical development, properties, assays, and physiological effects. AL 654-LABORATORY IN VITAMINS. 2 credits Chemical determination and assay procedures. Accompanying laboratory course for AL 653. AL 655-MINERAL NUTRITION AND METABOLISM. 4 credits Physiological effort of macro- and micro-elements, mineral interrelationships. AL 656-RUMINANT PHYSIOLOGY AND METABOLISM. 3 credits Prerequisite: AL 527. A review and correlation of the fundamental biochemical, physiological, and bacteriological research upon which the feeding of ruminants is based. Experimental methodology of rumen physiology and metabolism. AL 657-NoN-RUMINANT METABOLISM. 3 credits Prerequisite: AL 527. Basic principles affecting absorption and assimilation of nutrients required for growth, reproduction, and lactation of swine and small lab- oratory animals. AL 658-EQUINE NUTRITION AND PHYSIOLOGY. 3 credits Prerequisite: AL 527 and consent of instructor. Principles affecting absorption and assimilation of nutrients and basic physiology of growth, reproduction, and exercise of the horse. AL 659-GENETICS OF ANIMAL IMPROVEMENT. 4 credits Prerequisite: AL 602. Continuation of AL 602. Application of statistical tech- niques and design in animal breeding research. AL 660-GRADUATE SEMINAR IN ANIMAL SCIENCE. 1 credit AL 664-TOPICS IN GENETICS. 2 to 4 credits Identical with AY 664, BTY 696, DY 664, PY 664, ZY 664. May be re- peated with change of content up to a maximum of 12 credits. AL 697-SUPERVISED RESEARCH. 1 to 5 credits Credit not applicable toward degree. May be repeated. AL 698-SUPERVISED TEACHING. 1 to 5 credits Credit not applicable toward degree. May be repeated. AL 699-MASTER'S RESEARCH. 1 to 17 credits AL 799-DOCTORAL RESEARCH. 1 to 17 credits ANIMAL SCIENCE-GENERAL (College of Agriculture) The Departments of Animal, Poultry, and Dairy Sciences have com- bined their curricula into an Animal Science Curriculum. ADP 535 is a cross-departmental course taught by the staff of the three departments. COURSE FOR ADVANCED UNDERGRADUATES AND GRADUATES ADP 535-ANIMAL PRODUCTION IN THE TROPICS. 4 credits