Skip to main content
. 2020 Nov 2;100(2):820–834. doi: 10.1016/j.psj.2020.10.046

Table 2.

Calculated and analyzed nutrient composition (% as-fed, unless noted otherwise) of the experimental diets.

Nutrient composition Starter (1–17 d)
 Grower (18–35 d)
 Finisher (36–49 d)
Low AA1 density
 High AA density
 Low AA density
 High AA density
 Low AA density
 High AA density
Control AF2 Control AF Control AF Control AF Control AF Control AF
Calculated nutrient composition3
AMEn, kcal/kg 2,950 3,050 2,950 3,050 3,030 3,130 3,030 3,130 3,100 3,200 3,100 3,200
CP 21.65 21.65 23.65 23.65 19.65 19.65 21.65 21.65 17.65 17.65 19.65 19.65
Digestible AA
 TSAA 0.85 0.85 0.95 0.95 0.73 0.73 0.81 0.81 0.64 0.64 0.71 0.71
 Methionine 0.56 0.56 0.64 0.64 0.47 0.47 0.52 0.52 0.40 0.40 0.44 0.44
 Lysine 1.15 1.15 1.28 1.28 0.99 0.99 1.10 1.10 0.88 0.88 0.97 0.97
 Threonine 0.76 0.76 0.84 0.84 0.64 0.64 0.72 0.72 0.58 0.58 0.64 0.64
 Valine 0.89 0.89 0.97 0.97 0.81 0.81 0.89 0.89 0.72 0.72 0.80 0.80
 Tryptophan 0.21 0.21 0.23 0.23 0.19 0.19 0.22 0.22 0.15 0.15 0.18 0.18
Ca 1.02 1.02 1.02 1.02 0.87 0.87 0.87 0.87 0.68 0.68 0.68 0.68
Nonphytate P 0.48 0.48 0.48 0.48 0.42 0.42 0.42 0.42 0.27 0.27 0.27 0.27
Na 0.25 0.25 0.25 0.25 0.22 0.22 0.22 0.22 0.18 0.18 0.18 0.18
K 0.88 0.88 0.96 0.96 0.80 0.80 0.88 0.88 0.67 0.67 0.76 0.76
Cl 0.32 0.32 0.32 0.32 0.30 0.30 0.30 0.30 0.25 0.25 0.25 0.25
DEB4, mEq/kg 261 261 283 283 230 230 251 251 198 198 218 218
Analyzed nutrient composition5
 DM 87.86 88.12 87.58 87.82 86.15 85.81 85.45 85.26 87.65 87.65 87.37 87.76
 GE, kcal/kg 3,905 3,997 3,944 4,051 3,889 3,979 3,867 3,966 3,933 4,041 3,986 4,101
 CP 20.44 20.79 22.12 22.69 19.06 19.26 20.47 20.29 17.14 16.97 18.81 18.74
 Ether extract 4.93 6.14 6.32 7.16 4.85 5.97 5.40 6.68 5.52 6.86 6.67 7.70
 Ash 7.37 6.54 7.48 6.41 5.34 4.46 5.68 4.92 6.21 5.21 6.05 5.12
 Ca 1.04 1.01 1.03 1.01 0.82 0.85 0.84 0.85 0.77 0.76 0.78 0.76
 Total P 0.62 0.62 0.64 0.62 0.54 0.56 0.56 0.55 0.52 0.50 0.53 0.51
1

Amino acid density with 10% difference.

2

Diets with 1.17% of additional fat (AF) postpellet, with approximately 100 kcal ME/kg of diet.

3

According to Rostagno (2017).

4

Dietary electrolyte balance = Na + K–Cl (mEq/kg).