Apparent Metabolizable Energy Value of Rice Based Dry Distiller's Grains with Solubles (DDGS) with or without Enzyme Supplementation in Cockerels

Nitrogen-corrected apparent metabolizable energy values (AME_N) content of rice based dry distiller's grains with solubles (DDGS) in relation to dietary addition of feed enzymes (0 or 0.5 g/kg diet) in cockerels was evaluated by a total diet replacement (total collection) method in a 2 × 2 factorial design. A metabolic trial was conducted at two substitution levels (200 and 400 g/kg of reference diet) of DDGS with or without supplementation of commercial enzyme preparation in 9 groups of cockerels. The duration of the trial included a 10 d preliminary feeding period (on conventional grower diet) followed by a 12-days adaptation period (on reference and test diets) and a 3-days collection period. The calculated AME_N value of DDGS for cockerels was 2883 kcal/kg without enzyme supplementation. The AME_N value of DDGS was significantly (P<0.05) increased with enzyme supplementation, from 2883 to 2961 kcal/kg DM.