Table 6. Apparent and standardized ileal digestibility (%) of amino acids in brown rice fed to laying hens1)

Item (%) Apparent ileal digestibility Standardized ileal digestibility
Mean SD Mean SD
Indispensable amino acids
 Arg 73.7 8.0 94.4 8.1
 His 62.2 11.9 91.0 12.2
 Ile 53.6 14.2 87.8 14.7
 Leu 60.0 12.6 88.0 12.7
 Lys 60.9 12.9 96.6 14.1
 Met 58.1 15.8 79.4 13.4
 Phe 66.4 10.4 88.8 9.9
 Thr 32.7 21.1 84.6 23.3
 Val 61.4 11.7 89.0 11.7
Dispensable amino acids
 Ala 61.5 12.4 87.6 11.2
 Asp 57.1 13.3 88.4 13.0
 Cys 37.0 19.3 82.1 20.7
 Glu 68.9 10.0 89.2 8.4
 Gly 54.4 13.6 88.6 14.0
 Pro 66.4 10.6 91.3 11.4
 Ser 49.1 16.0 87.8 16.6
 Tyr 63.8 10.9 88.1 10.0
Values are means of six replicate cages with six hens per cage.
SD, standard deviation.