Pigeon Racing by Dr. Herbert R. Axelrod contains all the information that a budding fancier needs!
Extract from the book: "There has probably been more written on feeding than on any other subject related to pigeons. This has always been the most controversial subject. This chapter will give you a general knowledge of what and how to feed. The importance of choosing the right food and feeding in the right way cannot be overemphasized. The fancier who learns to feed correctly will win his share of races. Food gives the elements for proper growth and fuel to nourish the body and produce heat and energy."