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Table 8 Digestibility coefficients of amino acids for duck (3 weeks old white Pekin ducks)

From: A review of canola meal as an alternative feed ingredient for ducks

Amino acid Apparent ileal digestibility (%)
[23] [47] [74]
Alanine 66.0 79.2 79.3
Arginine 71.0 87.1 87.1
Aspartate + asparagine 60.0 74.6 74.6
Cystine 67.0 70.9 70.9
Glutamate + glutamine 81.0 85.9 85.9
Glycine 59.0 74.5 74.5
Histidine 82.7 82.7
Isoleucine 65.0 77.7 77.7
Leucine 73.0 79.4 79.4
Lysine 66.0 79.0 79.0
Methionine 80.0 84.8 84.7
Phenylalanine 73.0 81.5 81.5
Proline 75.7 75.7
Serine 70.0 71.4 71.4
Threonine 64.0 69.6 69.6
Tryptophan 84.9 84.9
Tyrosine 76.4 76.4
Valine 62.0 74.1 74.1
  1. Dashes indicate that no data were available