Dyfed Lewis

• Feed Energy Sources for Livestock
• Nutrition and the climatic environment
• Nutrition Conference for Feed Manufacturers
• Nutrition Conference for Feed Manufacturers, 5
• Nutrition Conference for Feed Manufacturers, 6
• Objectives in nutrition
• Recent Advances in Animal Nutrition - 1977
• Recent Advances in Animal Nutrition - 1979
• Recent Advances in Animal Nutrition- 1978