“…The mathematical model developed to estimate daily lysine requirements in individual growing-finishing pigs (Hauschild et al, 2012;Zhang et al, 2012;Cloutier et al, 2015) is being updated to account for the variation in amino acid efficiency and the requirements of amino acids other than lysine (Remus et al, 2017;Ghimire et al, 2016). Further developments will also include new knowledge concerning the genetic capability of pigs to efficiently use nutrients and integrate in the daily estimation of individual pigs' optimal nutrient requirements, the interaction between feeding patterns, diet composition, and the digestive and metabolic dynamic availability of dietary nutrients.…”