Skip to main content
. 2022 Jul 11;13:74. doi: 10.1186/s40104-022-00728-w

Table 3.

Apparent ileal digestibility of crude protein (CP) and amino acids, %

Nutrient SBM processing Protease Experimental diets P-value
SBM SBM30 SBM60 No Yes SBM SBM + E SBM30 SBM30 + E SBM60 SBM60 + E SEM P E P × E
CP 85.47 72.05 48.19 68.21 68.93 82.36ab 88.59a 67.23bc 76.87ab 55.05cd 41.33d 10.62 < 0.0001 0.83 0.01
Essential amino acids
 Arg 93.25x 89.06x 75.74y 84.67 87.36 91.54 94.95 86.51 91.61 75.96 75.52 5.07 < 0.0001 0.10 0.35
 His 90.24x 82.61y 61.88z 76.71 79.78 87.98 92.50 78.53 86.69 63.63 60.14 7.39 < 0.0001 0.19 0.12
 Ile 87.55x 82.67x 64.84y 76.67 80.03 84.51 90.59 78.81 86.53 66.70 62.97 7.17 < 0.0001 0.14 0.09
 Leu 87.68x 84.26x 68.95y 78.53 82.07 84.47 90.90 80.63 87.89 70.48 67.41 6.59 < 0.0001 0.10 0.09
 Lys 89.76x 77.86y 42.80z 68.68 71.59 87.42 92.11 72.19 83.52 46.44 39.15 10.71 < 0.0001 0.39 0.09
 Met 90.96x 84.29y 66.32z 80.20 80.85 88.61 93.31 82.12 86.47 69.87 62.78 7.00 < 0.0001 0.77 0.06
 Phe 91.53x 89.46x 80.36y 85.53 88.71 89.03 94.03 86.57 92.36 81.00 79.73 4.27 < 0.0001 0.02 0.08
 Thr 81.23x 71.04x 42.22y 62.22 67.44 77.16 85.31 64.67 77.41 44.83 39.60 12.05 < 0.0001 0.17 0.14
 Trp 82.41 74.25 39.15 69.86 60.68 79.33a 85.49a 77.42a 71.08ab 52.83b 25.46c 13.72 < 0.0001 0.04 0.01
 Val 86.84x 80.88x 61.23y 74.56 78.07 83.58 90.10 76.56 85.19 63.55 58.91 7.92 < 0.0001 0.17 0.08
Non-essential amino acids
 Ala 86.28x 79.36x 55.59y 72.13 75.36 82.96 89.60 74.82 83.91 58.60 52.58 9.14 < 0.0001 0.26 0.08
 Asp 86.73x 69.56y 30.80z 60.45 64.28 83.92 89.54 62.95 76.16 34.47 27.13 13.09 < 0.0001 0.35 0.13
 Cys 77.66x 63.55x 13.36y 50.30 52.75 70.78 84.54 58.79 68.30 21.31 5.40 16.67 < 0.0001 0.64 0.06
 Glu 90.81x 82.44y 60.54z 76.99 78.87 88.85 92.78 78.38 86.51 63.74 57.33 7.63 < 0.0001 0.43 0.05
 Gly 82.22 69.09 37.73 61.11 64.92 77.96ab 86.49a 61.92bc 76.26ab 43.44cd 32.01d 12.60 < 0.0001 0.34 0.03
 Pro 86.72 77.04 50.25 68.80 73.87 82.82ab 90.61a 70.08b 84.00ab 53.49c 47.00c 13.56 < 0.0001 0.10 0.03
 Ser 84.26x 75.34x 51.45y 67.80 72.90 80.47 88.06 69.12 81.57 53.82 49.08 10.32 < 0.0001 0.12 0.10
 Tyr 89.02x 85.46x 66.78y 77.83 83.01 85.02 93.02 81.98 88.94 66.50 67.06 6.13 < 0.0001 0.01 0.24

Abbreviations: SEM standard error of the mean, P soybean meal processing, E enzyme supplementation

a,b,c,dMeans with different superscript letters within a row are significantly different (P < 0.05)

x,y,zMeans with different superscript letters within a row are significantly different (P < 0.05)