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Table 4 Standardized ileal digestibility (%) of amino acids (AA) in copra and palm kernel products and in soybean meal1

From: Nutritional value of high fiber co-products from the copra, palm kernel, and rice industries in diets fed to pigs

Item Copra meal Copra expellers Palm kernel meal Palm kernel expellers Soybean meal
Crude protein 79.9 67.6 71.3 81.8 87.0
Indispensable AA
 Arg 91.2 90.0 88.3 90.4 94.0
 His 82.5 73.2 80.8 83.6 90.0
 Ile 81.6 76.7 80.4 83.5 89.0
 Leu 81.6 78.5 79.7 82.4 88.0
 Lys 72.8 40.3 71.1 76.5 89.0
 Met 85.5 82.1 82.2 85.0 90.0
 Phe 84.5 81.4 82.2 84.6 88.0
 Thr 76.7 64.4 73.9 77.2 85.0
 Trp 88.4 66.3 87.5 89.4 91.0
 Val 79.0 77.8 77.2 81.0 87.0
Mean 82.6 73.1 80.3 83.4 89.1
Dispensable AA
 Ala 78.2 79.0 72.5 79.0 85.0
 Asp 78.9 66.5 75.8 77.5 87.0
 Cys 68.0 53.1 71.7 76.4 84.0
 Glu 79.9 67.3 81.2 82.0 89.0
 Gly 76.2 60.6 65.1 77.9 84.0
 Pro 128.8 125.0 54.9 121.5 113.0
 Ser 82.0 70.5 80.0 83.7 89.0
 Tyr 82.8 58.0 80.1 82.7 88.0
Mean 83.7 72.5 75.2 83.7 89.9
Mean all AA 83.2 72.8 77.6 83.5 89.5
  1. 1Refereces [9, 10, 15]