Feed-induced specific ileal endogenous amino acid losses: Measurement and significance in the protein nutrition of monogastric animals

摘要: Abstract The endogenous ileal amino acids recovered at the terminal ileum of monogastric animals comprises two components, namely basal and specific losses. losses are fixed associated with feed dry matter intake, whereas variable induced by presence dietary such as fibre anti-nutrients. Currently there is no methodology available to directly measure These calculated determining total (basal plus specific) then subtracting from Two techniques, guanidination isotope markers, can be used for determination acid fundamental features, applications shortcomings these methodologies discussed. Although protein significant metabolic costs animal, published data quantifying limited owing complexity methodologies.