Additivity of ileal endogenous losses and real digestibilities of amino acids determined by means of the 15N-labelled diets technique in growing pigs fed various feedstuffs.

peer reviewedThe ileal endogenous losses and the real digestibilities of protein and amino acids from wheat, barley, pea, faba bean and rapeseed meal were determined in growing pigs by means of the 15N-labelled diet technique. The ileal real digestibilities were additive when the feedstuffs were mixed together, in contrast to the ileal endogenous losses which, apart from endogenous lysine excretion, did not show any additivity