Effect of Feeding Enzymolytic Soybean Meal on Performance, Digestion and Immunity of Weaned Pigs (Report‪)‬

INTRODUCTION A main reason for the low soybean meal tolerance in piglets is that even adequately heated soybean meals contain high levels of several heat stable antinutritional factors (Li et al., 1990). Glycinin and beta-conglycinin are the main antigen proteins in soybean meals, which can cause a transient increase in crypt cell production, and subsequent malabsorption and villus atrophy in weaned piglets (Stokes et al., 1986; Dierick et al., 2004; Jezierny et al., 2010). Soybean trypsin inhibitors are also important factors to depress the growth performance and health status of piglets (Yen et al., 1974), depending on the inclusion level of soybean meal and the content of these antinutritional factors (Garthoff et al., 2002).