the initial 4 days of each experimental period were considered an adaptation period to the diet. Faecal samples were collected on day-5 of each period and stored at -20 ℃. Ileal samples were collected on days 6 and 7 by attaching a 250-ml plastic bag to the opened cannula and digesta flowing into the bag were collected for nine hours per collection day. Collected digesta were stored at -20℃ .Digesta were mixed within the pig and the period at the conclusion of the experiment and a sub-sample was collected and lyophilized. Faecal samples were dried in a foeced air oven. Diets and ileal digesta were analyzed for DM and CP (AOAC,2000) and faecal samples were analyzed for DM and P (AOAC, 2000). All samples were also analyzed foe GE using bomb calorimetry (Parr Instruments, Moline IL).