whichwas used to estimate basal end

which
was used to estimate basal endogenous N and AA losses
for determining the SID of N and AA (Table 1). All
diets contained chromic oxide (0.3%) as an indigestible
marker. The experiment was conducted according to
a replicated 3 × 3 Latin square design to give 6 replicates
per diet. Each period consisted of 7 d; the first 5
d were for adaptation and the last 2 d for ileal digesta
collection. Pigs were fed the diets at 2.6 times the maintenance
energy requirement (Agricultural Research
Council, 1981) based on their BW at the beginning of
each period. The daily feed allowance was offered in 2
equal portions at 0800 and 1530 h. Ileal digesta were
collected continuously for 12 h from 0800 to 2000 h on
d 6 and 7 as described by Nyachoti et al. (2002) and
were stored at −20°C until required for analysis