Table 2.
Chemical composition of experimental soybean meals postproduction.
| Type of soybean meal |
||||
|---|---|---|---|---|
| Parameters | SE-SBM | EENO | FFNO | FFHO |
| 1Crude protein (%) | 45.7 | 43.8 | 39.6 | 39.9 |
| 1Crude fat (%) | 4.75 | 7.12 | 17.3 | 15.5 |
| 1Crude fiber (%) | 5.50 | 7.20 | 6.90 | 7.90 |
| 1Crude ash (%) | 6.16 | 6.02 | 5.39 | 5.10 |
| 1Moisture content (%) | 10.0 | 5.58 | 5.43 | 7.83 |
| UAI (ΔpH) | 0.07 | 0.06 | 0.29 | 0.27 |
| Trypsin inhibitor (mg/g) | 2.40 | 7.64 | 7.99 | 6.92 |
| Gross energy (kcal/kg) | 4105 | 4598 | 4863 | 4890 |
| Palmitic acid (%) | 14.1 | 11.3 | 11.1 | 7.74 |
| Stearic acid (%) | 3.67 | 3.68 | 3.55 | 3.11 |
| Oleic acid (%) | 14.3 | 19.7 | 18.0 | 71.7 |
| Linoleic acid (%) | 55.9 | 53.2 | 55.2 | 11.0 |
SE-SBM: solvent extracted defatted soybean meal commercially purchased from Perdue Agribusiness (Cofield, NC).
EENO: extruder expelled normal oleic soybean meal.
FFNO: full-fat normal-oleic soybean meal.
FFHO: full-fat high-oleic soybean meal.
Solvent extracted defatted soybean meal was purchased commercially from Perdue Agribusiness (Cofield, NC, USA). Soybean meals (EENO, FFNO and FFHO) were manufactured at Mule City Feeds (Benson, NC, USA). The proximate composition and fatty acid analysis of the various meals was analyzed by a commercial lab (ATC Scientific, Little Rock, AR, USA) using standard AOAC-approved methods. UAI: Urease Activity Index-measured as the change in pH.
Fatty acid content (palmitic acid, stearic acid, oleic acid, linoleic acid) = g of fatty acid/g total lipid content * 100.
1Parameters measured as g/g total sample weight * 100