Intestinally absorbable dietary protein
Because it is possible to determine the RUP and intestinal digestion of protein
supplements, IADP can be derived by multiplying RUP by intestinal digestion of RUP
(Table 1). The concept of IADP is similar to the PDIA value developed in France
Notes to Table 1:
a Percent of DM.
b Ruminal undegradable protein estimated using the Dacron polyester bag technique.
’ In vitro intestinal digestion (Calsamiglia and Stem, 1995). expressed as a percentage of RUP.
d Intestinally absorbable dietary protein: IADP = RUP X ID, expressed as a percentage of dietary CP.