Near-Infrared Reflectance Spectroscopy (NIRS) has been used for feedstuff analysis for many years. Evonik has developed specific calibrations for the prediction of crude protein and essential amino acids for all major feed ingredients, both on total and standardized ileal digestible bases. The basis of AMINONIR® is a large and diverse set of samples of global origin. The advantages of AMINONIR® are easy sample preparation, speed and low operating costs. AMINONIR® is simple to operate and no chemicals have to be used for the procedure. AMINONIR® offers the opportunity to do extensive raw material screening programs at moderate cost.