protein, and isocaloric, 4.5 Kcal/g diet in gross energy. Phytase enzyme
(Ronozyme, dry powder) was added to the SBM-P at 0.2 g/kg feed.
Composition of the experimental diets is shown in Table 3. The experimental diets were made in a laboratory pellet mill by blending all of the
dry ingredients with 300 ml water per kg dry ingredients. The extruding
temperature did not exceed 40 °C. After extruding, all diets were dried
at 45 °C within 48 h and stored at 4 °C prior to use.