Nutrition Conference for Feed Manufacturers: 7 is a collection of papers dealing with horse nutrition and ruminant nutrition. This collection of papers is divided in four parts. Part 1 deals with the evaluation of the dietary needs of ruminants, finding the need to replace their feeding systems by replacing the starch equivalent system with the metabolizable energy system. Feed and energy value calculation are likewise explained where metabolizable energy (ME) is shown to be easily calculated with reference to the Agricultural Research Council system and later analyses. Observations on the efficiency of utilization of metabolizable energy in meat and milk follow, as feeding not only involves the efficient use of energy from the feed but also of nutritional contents and composition of the feed. Practical application and calculation are then discussed to achieve best practices. In Parts 2 and 3, the evaluation of the dietary energy for pigs, poultry nutrition, food intake of practice broilers and laying fowl, and formulation problems are discussed. Part 4 discusses horse nutrition with detailed descriptions of the anatomy of the digestive tract, digestion and absorption of nutrients, and the horses' protein requirement. Energy requirements for the maintenance, growth, and reproduction of the horse using calculations based on the National Research Council basal allowance is discussed. Students and professors of veterinary medicine, stable owners, horse feed manufacturers, horse enthusiasts and equestrians will find this volume helpful.