Considering individual amino acids in cow diets

To make systematic rather than empirical improvements in increasing the efficiency, we need to adequately define the requirements of the high yielding dairy cow and to match them with a corresponding supply. Because the supply of protein to the dairy cow differs in the composition of its building blocks, the amino acids, and because the metabolic fates of amino acids are not fixed, it is therefore important to consider individual amino acids to better balance dairy rations, says Hélène Lapierr