A digestibilitytrial with 16 to 21-day-old turkeys was conducted to study the effects of feedform and corn particle size on the coefficient of total intestinal tract apparentdigestibility of dry matter (DM), nitrogen (N), ether extract (EE), aparentmetabolizable energy (AME) and aparent metabolizable energy corrected by nitrogenbalance (AMEn). A completely randomized experimental design in a2 × 3 factorial arrangement - two feed forms (crumble and micropellet)and three average particle sizes of the corn (380, 606, 806 µm) - was applied.Three hundred and sixty 1-d-old B.U.T 9 male turkey poults were distributedinto 36 cages, 6 replications of 10 birds, each one per treatment. Overall careof birds complied with welfare directive from the Universidade Federal do Paraná.Feed form did not affect the coefficient of total intestinal tract apparentdigestibility of DM, N or crude fat (CF); however, an increase in corn particlesize improved the coefficient of total intestinal tract apparent digestibilityof DM, N and CF. AME and AMEn were not affected by treatments. Feedform does not affect nutrient digestibility on young turkeys and grinding cornat an average particle size bigger than 380 µm improves nutrient digestibility.
