Table 6.

True intestinal digestibility of AA

Item	Equations	Slope P-value
Total AA	Ŷ = −17.18(±15.44) + 0.75(±0.02)X	<0.01
EAA	Ŷ = −8.14(±7.21) + 0.77(±0.24)X	<0.01
NEAA	Ŷ = −9.29(±8.56) + 0.74(±0.02)X	<0.01
EAA
Arginine	Ŷ = −0.76(±0.59) + 0.81(±0.01)X	<0.01
Histidine	Ŷ= −0.47(±0.30) + 0.83(±0.02)X	<0.01
Isoleucine	Ŷ= −0.87(±0.68) + 0.77(±0.02)X	<0.01
Leucine	Ŷ= −1.78(±1.15) + 0.79(±0.01)X	<0.01
Lysine	Ŷ= −1.70(±2.26) + 0.77(±0.05)X	<0.01
Methionine	Ŷ= −0.38(±0.25) + 0.86(±0.02)X	<0.01
Phenylalanine	Ŷ= −1.21(±0.68) + 0.78(± 0.02)X	<0.01
Threonine	Ŷ= −1.65(±1.04) + 0.72(± 0.03)X	<0.01
Tryptophan	Ŷ= −0.56(±0.22) + 0.82(±0.04)X	<0.01
Valine	Ŷ= −1.69(±0.94) + 0.76(±0.02)X	<0.01
NEAA
Alanine	Ŷ= −1.97(±1.16) + 0.74(±0.02)X	<0.01
Aspartic acid	Ŷ= −1.08(±1.83) + 0.81(±0.02)X	<0.01
Cystine	Ŷ= −1.41(±0.70) + 0.85(±0.06)X	<0.01
Glutamic acid	Ŷ= −1.91(±2.13) + 0.75(±0.02)X	<0.01
Glycine	Ŷ= −2.59(±1.18) + 0.71(±0.02)X	<0.01
Proline	Ŷ= −2.23(±1.05) + 0.73(±0.02)X	<0.01
Serine	Ŷ= −1.30(±0.87) + 0.76(±0.02)X	<0.01
Tyrosine	Ŷ= −0.05(±0.89) + 0.67(±0.02)X	<0.01