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. 2022 Oct 19;12:145–150. doi: 10.1016/j.aninu.2022.09.012

Table 2.

Analyzed amino acid composition of the experimental diets containing 6 concentrations of standardized ileal digestible lysine (as-fed basis, %).

Item Standardized ileal digestible lysine concentrations, %
0.86 0.96 1.06 1.16 1.26 1.36
Indispensable amino acid
 Arginine 1.25 1.22 1.31 1.33 1.23 1.28
 Histidine 0.42 0.43 0.43 0.43 0.39 0.42
 Isoleucine 0.89 0.85 0.89 0.91 0.83 0.85
 Leucine 1.44 1.39 1.48 1.48 1.34 1.41
 Lysine 0.92 0.99 1.14 1.23 1.27 1.36
 Methionine 0.53 0.55 0.57 0.56 0.51 0.51
 Phenylalanine 0.86 0.84 0.89 0.89 0.81 0.86
 Threonine 0.88 0.86 0.90 0.92 0.85 0.87
 Valine 1.05 1.03 1.05 1.08 0.99 1.02
Dispensable amino acid
 Alanine 0.75 0.75 0.79 0.80 0.71 0.76
 Aspartic acid 1.65 1.59 1.72 1.72 1.56 1.63
 Cysteine 0.46 0.44 0.45 0.45 0.47 0.44
 Glutamic acid 6.38 5.88 5.94 5.95 5.43 5.35
 Glycine 0.66 0.64 0.68 0.68 0.62 0.66
 Proline 0.93 0.84 1.01 0.89 0.89 0.98
 Serine 0.79 0.77 0.83 0.83 0.75 0.79
 Tyrosine 0.59 0.56 0.59 0.60 0.54 0.58