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Table 5 Standardized ileal digestibility of crude protein and amino acids of the assay dietsa

From: Effect of Bacillus subtilis and Bacillus licheniformis supplementation in diets with low- and high-protein content on ileal crude protein and amino acid digestibility and intestinal microbiota composition of growing pigs

  High-protein Low-protein SEM P-value
Item - + - + P1 B2 P × B3
Crude protein 82.1 81.3 87.8 83.9 2.09 0.063 0.274 0.488
Indispensable amino acids
 Arginine 88.5 87.9 91.3 88.7 1.35 0.210 0.254 0.474
 Histidine 84.5 83.4 88.4 84.9 1.70 0.128 0.187 0.492
 Isoleucine 84.0 83.3 88.8 85.2 1.96 0.110 0.289 0.474
 Leucine 84.3 83.5 88.0 84.7 1.73 0.164 0.255 0.472
 Lysine 87.5 87.0 91.1 87.8 1.38 0.126 0.192 0.333
 Methionine 91.9 91.5 94.3 92.0 1.03 0.166 0.201 0.363
 Phenylalanine 82.2 81.7 86.9 83.6 1.99 0.112 0.348 0.474
 Threonine 83.3 82.4 88.5 84.1 2.09 0.114 0.212 0.410
 Tryptophan 80.3 78.4 85.0 80.3 2.47 0.195 0.202 0.584
 Valine 84.2 83.2 89.0 85.0 1.93 0.106 0.218 0.436
Dispensable amino acids
 Alanine 76.9 75.2 83.9 79.0 2.66 0.056 0.232 0.549
 Aspartic acid 79.3 78.2 85.0 80.7 2.32 0.094 0.259 0.509
 Cystine 80.7 78.9 87.5 82.5 2.33 0.037 0.166 0.499
 Glutamic acid 89.5 88.8 93.1 90.8 1.22 0.034 0.242 0.539
 Glycine 76.8 74.8 85.3 78.7 2.91 0.045 0.159 0.436
 Proline 91.4 90.1 96.8 93.2 1.64 0.018 0.158 0.486
 Serine 84.1 82.6 89.6 85.6 2.10 0.055 0.209 0.547
  1. 1 P-value of protein level
  2. 2 P-value of probiotic supplementation with Bacillus spp.
  3. 3 P-value of interaction between protein level and probiotic supplementation with Bacillus spp.
  4. aLS means and standard error of the means, %