Practical Feed Ingredients
Ingredients used in practical fish feeds can be classed as protein (amino acid) sources; energy sources; essential lipid sources; vitamin supplements; mineral supplements; and special ingredients to enhance growth, pigmentation, or sexual development in the fish, or physical properties, palatability, or preservation of the feed. Some feed ingredients in common use worldwide and factors influencing their use in fish feeds are discussed in the following. Nutrient composition of these and other feedstuffs is presented in Appendix A.