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Metabolizable Energy of Soybean Meal. Nick Dale and Amy Batal University of Georgia Department of Poultry Science. Solvent-extracted dehulled soybean meal. Solvent-extracted soybean meal with hulls. Soybean meal contaminated with foreign material.

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Metabolizable energy of soybean meal l.jpg

Metabolizable Energy of Soybean Meal

Nick Dale and Amy Batal

University of Georgia

Department of Poultry Science





Classical me studies apparent metabolizable energy of soybean meals sbm from 1960 to 1962 l.jpg
Classical ME StudiesApparent metabolizable energy of soybean meals (SBM) from 1960 to 1962

SBM

Laboratory 44% Protein 50% Protein Difference

kcal/kg, 88% DM

Cornell 2,195 2,474 11.8

Connecticut 2,200 2,356 6.9

Guelph 2,352 2,542 8.8

Average 2,249 2,457 9.2


True metabolizable energy with nitrogen correction tme n of dehulled soybean meal from 1987 to 1988 l.jpg
True metabolizable energy with nitrogen correction (TMEn) of dehulled soybean meal from 1987 to 1988

TMEn

____________________

Laboratory Samples High Low Mean

________________________________________________________

no. -----kcal/kg, 88% DM---

Agriculture Canada 29 2,692 2,187 2,421

Georgia 10 2,541 2,339 2,438

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Design of present study l.jpg
Design of present study

  • 23 samples of Soybean meal

  • Proximate composition

  • TMEn with 10 SCWL Roosters




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Prediction Equation: fiber.Calculating ME of soybean meal from crude fiber

TMEn = 3157 – 75 (crude fiber)

(Dry matter basis), r2 = 0.61

Example: 88% Dry matter

TMEn = 2778 – 66 (crude fiber)

TMEn = 2778 – 66 (4.8)

TMEn = 2461 kcal/kg (1119 kcal/lb)



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Effect of overprocessing on the metabolizable energy of SBM fiber.

Overprocessing has little effect on the ME of soybean meal