Table 3.
Apparent ileal digestibility of protein and in vitro crude protein digestibility in different feed ingredients1

Item (%) AID2 of CP
SBM CM DDGS
In vivo 84.3 72.2 72.3
In vitro
A 93.2 86.8 83.8
B 93.0 86.7 79.1
SEM3 0.48 0.57 0.79
P-value4 (A vs. B) 0.727 0.929 0.103
Each mean represents 8 and 3 observations for in vivo and in vitro, respectively.
AID=apparent ileal digestibility.
SEM=standard error of the mean.
The P-value was calculated from the data between in vitro experiment using experimental diets or feed ingredients. A=Experimental diet; B=Feed ingredient; SBM=soybean meal; CM=canola meal; DDGS=corn distiller’s dried grains with solubles.