The piglets in each pen were kept on concrete
floor with an underground heating device, with free
access to feed and drinking water. The trial lasted
for 25 days. At the end of the trial, fecal samples
were obtained from four piglets in each treatment.
All samples were stored at −20°C for later analysis.
The diets were analyzed for dry matter (DM) and
ash contents (method 942.05), Kjeldahl N (method954.01) and crude fiber (method 978.10, AOAC,
1999). The ingredients and compositions of each
diet are presented in Table II.