Table 1.
Composition of amino acids and antinutritional factors in soy products and animal protein supplements1
| Item | SBM2 | SPC3 | Poultry meal | Fish meal | Blood plasma |
|---|---|---|---|---|---|
| Arg, % | 3.45 | 4.59 | 4.05 | 3.84 | 4.39 |
| His, % | 1.28 | 1.67 | 1.32 | 1.44 | 2.53 |
| Ile, % | 2.14 | 2.79 | 2.35 | 2.56 | 2.69 |
| Leu, % | 3.62 | 4.68 | 4.25 | 4.47 | 7.39 |
| Lys, % | 2.96 | 3.87 | 3.96 | 4.56 | 6.90 |
| Met+Cys, % | 1.36 | 1.77 | 1.85 | 2.34 | 3.39 |
| Phe, % | 2.40 | 3.18 | 2.41 | 2.47 | 4.25 |
| Thr, % | 1.86 | 2.47 | 2.37 | 2.58 | 4.47 |
| Trp, % | 0.66 | 0.81 | 0.60 | 0.63 | 1.41 |
| Val, % | 2.23 | 3.01 | 2.92 | 3.06 | 5.12 |
| Glycinin, mg/g | 112.6 | <0.1 | – | – | – |
| β-conglycinin, mg/g | 125.0 | 0.1 | – | – | – |
The amino acid composition of SBM, fish meal, and blood plasma were from NRC (2012); the amino acid composition of poultry meal was from Rojas and Stein (2013); the amino acid composition of SPC was from analyzed values (CJ Selecta, MG, Brazil).
SBM, soybean meal.
SPC, soy protein concentrate (X-Soy 200, CJ Selecta, MG, Brazil).