Effect of Soybean Meal from Different Midwest Soybean Varieties on Growth Performance of Broilers

At hatch, 360 one-d old Cobb500 male broilers were placed in battery cages to determine the effect of soybean meal (SBM) from different Midwest varieties on growth performance broilers. There 6 per cage and 15 replicates treatment. Dietary treatments cons0isted 1 4 sources varying quality determined by crude protein (CP) content processed into SBM. Two consisted soybeans a similar region either commercially solvent extracted or experimentally at Texas A&M University. Additional included low high soybean, SBM Therefore, dietary with 47% CP (CSBM), 42% (42SBM), 49% (49SBM), 52% (52SBM). Diets formulated 1.05% digestible Lys balanced using AA values previously determined. Added fat provided vegetable oil was kept constant formulation across treatments. Data analyzed GLIMMIX procedure SAS 9.4, as experimental unit, location blocking factor Tukey-Kramer adjustment for multiple comparisons used. From d 0 18, body weight gain (BWG) 18 BW increased (P < 0.001) fed CSBM, compared 42SBM, 49SBM, 52SBM. Broilers CSBM had ADFI, 42SBM 52SBM, 49SBM intermediate. no evidence feed conversion ratio (FCR) differences difference among meal; however, there increases diet cost $28.81 5.41 ton respectively, Feed bird decreased birds 52SBM ($0.244) ($0.271) ($0.266) ($0.256) intermediate, 42SBM. lower inclusion could be used maintain potential savings.