effect of presolvent extraction processing method on the nutritional value of soybean meal for chicks this study evaluated the effect of extruding or expander processing prior to solvent extraction on the nutritional value of soybean meal sbm three samples of sbm containing 100 nonexpander sbm 100 expander sbm or a mixture of nonexpander and expander sbm were obtained from a commercial plant an experiment was conducted using peterson x hubbard commercial male broiler chicks fed 20 cp cornsbmcorn gluten meal diets from 8 to 21 d of age the experiment had a 3 x 2 x 2 factorial design with three sbm types two levels of met cys 077 and 090 and two levels of lys 095 and 120 processing method had no effect on the amino acid concentration or protein solubility of the sbm dietary treatment had no significant effect on chick weight gain or feed intake feed efficiency was significantly improved p 005 by met and lys supplementation but sbm processing method had no significant effect the results of this study indicate that presolvent processing method expander or nonexpander had no significant effect on the nutritional value of sbm for broiler chicks