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Table 2 Amino acid profile (g/100 g amino acids) of different endogenous secretions

From: Progress in ileal endogenous amino acid flow research in poultry

Amino acid Pancreatic secretionsa Bile (pigs)b Bile (broilers)c Mucind
Aspartic acid 12.5 0.4 2.1 7.8
Threonine 5.2 0.3 1.5 16.4
Serine 6.9 0.3 1.6 10.9
Glutamic acid 10.3 1.1 3.2 10.1
Proline 5.0 0.3 1.4 12.0
Glycine 6.2 95.0 1.9 5.5
Alanine 5.4 0.0 1.1 7.4
Valine 7.2 0.3 1.7 5.9
Isoleucine 5.9 0.2 1.0 3.0
Leucine 8.3 0.4 1.8 5.7
Tyrosine 5.7 0.2 1.1 3.2
Phenylalanine 4.4 0.2 1.0 3.5
Histidine 2.6 0.2 0.8 1.7
Lysine 5.1 0.3 1.2 2.8
Arginine 5.1 0.3 2.5 3.5
Taurine 73.7
Methionine 1.1 0.1 0.7 0.8
Cysteine 1.7 0.6 1.7 10.0
  1. aPancreatic secretions, pigs; Corring and Jung [21]
  2. bJuste [22]
  3. cMassey University, unpublished data
  4. dMucin from the small intestine, pigs; Lien et al. [23]