Nutrient Requirements of Poultry (NRC 1994)
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Nutrient Requirements of Poultry: Ninth Revised Edition, 1994
(Nutrient Requirements of Domestic Animals: A Series)
By Subcommittee on Poultry Nutrition, National Research Council
Poultry diets are composed primarily of mixture of several feedstuffs such as cereal grains, soybean meal, animal by-product meals, fats and vitamin and mineral premixes. These feedstuffs, together with water, provide the energy and nutrients that are essential for the bird’s growth, reproduction, and health, namely proteins and amino acids, carbohydrates, fats, minerals, and vitamins. The energy necessary for maintaining the bird’s general metabolism and for producing meat and eggs is provided by the energy-yielding dietary components, primarily carbohydrates and fats, but also protein.
Poultry diets also can include certain constituents not classified as nutrients, such as xanthophylls (that pigment and impart desired color to poultry products), the “unidentified growth factors” claimed to be in some natural ingredients, and antimicrobial agents (benefits of which may include improvement of growth and efficiency of feed utilization). Each of these components of poultry diets is considered in the following sections.
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April 12 2008 03:07 pm | Books