Reduction in particle size (1 versus 3 mm) increased the total tract apparent digestibility of
dietary components and the average daily gain (ADG) of Landrace x Yorkshire pigs in the
post-weaning period, but not in the growing period [26]. Moreover, addition of a multienzyme
mixture (mixture of α-amylase, β-glucanase, cellulase and protease) improved the
total tract apparent digestibility of dietary components and growth performance in the postweaning
period [26]. However, there was an interaction between particle size and multienzyme
supplementation on the total tract apparent digestibility of crude protein (CP) and
neutral detergent fibre (NDF) in the post-weaning period, such that multi-enzyme
supplementation increased the total tract apparent digestibility of CP and NDF in the larger
particle size diet (80 versus 75%, and 58 versus 51%, respectively), while there was no
changes in a small particle size diet (80 versus 78%, and 59 versus 55%, respectively).
However, in the growing period multi-enzyme supplementation had no positive effect on the
performance and the total tract apparent digestibility of dietary components, with the
exception of CP and NDF (Table 1).