Why must animal feed combine cereal grains with protein-rich foods and other nutrients?

Animal feed must combine cereal grains with protein-rich foods and other nutrients to ensure a nutritionally balanced ration that supports animal health and productivity.1

While cereal grains are excellent sources of carbohydrates and energy, they typically contain poor-quality protein, meaning they lack sufficient concentrations of one or more essential amino acids required for biological functions. By blending these grains with high-quality protein sources—such as soybean meal, fish meal, or milk—producers can restore the necessary balance of amino acids for proper growth, tissue repair, and the production of milk, eggs, or wool.2

Furthermore, animals require specific amounts of minerals and vitamins to maintain health. Compounded rations, such as those used for cows, pigs, and poultry, are carefully formulated to integrate these nutrients alongside the energy provided by cereals. This balance is essential, as it allows animals to efficiently utilize their feed, ultimately supporting the supply of animal protein in the human diet.1