*5.4.2 Dietary planning using digestible amino acids*

It is necessary to formulate feed based on metabolizable energy and digestible AA when fibrous and poorly digested components are being examined for usage. The amount of AA that can be digested varies depending on the component; some ingredients can be digested more easily than others. When diet formulas include a variety of alternative, poorly digested substances, the utilization of digestible AA is especially relevant.
