This experiment was conducted to evaluate the effect of multienzymatic complex (MC) addition in diets with different types of extruded soybeans on the energy values and nutrient digestibility coefficients for broiler chicks. A total of 288 Avian Farms males broiler chicks averaging eight days old was allotted to a 3 x 2 factorial arrangement (under, standard and over processed extruded full fat soybean-based diets with and without MC, in a total of six treatments with eight replicates and six birds per experimental unit. Feces were collected and weighed during five days. It was observed that the MC addition (composed by cellulase, amylase and protease) increased the coefficients of dietary ileal apparent digestibility of DM, CP, GE, and fat by 4.8, 1.3, 4.8, and 6%, respectively. However, under processed extruded full fat soybean-based diets, with MC, increased most the ileal digestibility: 10.7% (DM), 4.2% (CP), 11.4%, (GE), and 17.55% fat. The MC addition increased the ileal digestibilility of NDF, ADF, and hemicelullose at average 10.60, 23.05, and 6.39%, respectively. The birds fed diets with standard processed extruded full fat soybean showed higher values of coefficients of nutrient ileal digestibility and of metabolizable energy than those fed extruded under and over processed full fat soybean-based diet.
broiler chicks; digestibility; enzymes; extruded full fat soybean; processing
