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. 2015 Jun;16(6):503–510. doi: 10.1631/jzus.B1400299

Table 4.

Concentrations of 16 types of amino acids in the forms of FAA-N and PBAA-N in the ruminal, omasal, and duodenal digesta (n=6)

AA FAA-N
PBAA-N
Concentration (mg N/100 ml)
SE P-value Concentration (mg N/100 ml)
SE P-value
Ruminal Omasal Duodenal Ruminal Omasal Duodenal
Asp 1.82B 3.13B 9.70A 1.522 0.0050 5.623B 13.759B 37.195A 4.855 0.0010
Thr 1.38B 2.14B 12.53A 2.074 0.0027 1.578B 4.996BA 9.456A 1.603 0.0117
Ser 1.24B 2.79B 14.75A 2.128 0.0008 1.888B 7.588BA 11.277A 1.511 0.0019
Glu 3.90B 12.03BA 22.37A 3.037 0.0024 6.129B 9.762B 49.652A 7.137 0.0010
Pro 0.04A 0.13A 0.06A 0.088 0.7320 2.973B −0.133B 21.687A 2.885 0.0002
Gly 0.88B 1.72B 10.58A 1.280 0.0001 3.325B 6.439B 28.103A 2.451 <0.0001
Ala 1.29B 3.83B 11.52A 1.620 0.0012 3.228B 4.799B 14.891A 1.961 0.0015
Val 1.12B 2.42B 10.77A 1.656 0.0017 1.383B 2.049B 12.952A 1.944 0.0011
Met 0.44B 1.47B 7.90A 0.976 0.0001 −0.334BA −0.766B 3.050A 0.831 0.0102
Ile 1.09B 1.92B 8.39A 1.396 0.0039 1.242B 2.080B 11.934A 1.135 <0.0001
Leu 1.59B 2.77B 17.79A 2.468 0.0005 1.614B 2.304B 19.309A 3.371 0.0029
Tyr 1.05B 1.82B 9.81A 1.511 0.0015 0.969B 2.661BA 7.902A 1.342 0.0063
Phe 0.97B 1.83B 11.63A 1.860 0.0017 1.109A 1.683A 6.460A 1.474 0.0412
His 1.55B 6.02BA 10.32A 1.271 0.0008 4.568A 9.045A 8.584A 1.615 0.132
Lys 3.12B 7.08BA 14.39A 1.754 0.0013 3.179B 1.809B 29.425A 4.015 0.0003
Arg 0.93B 1.14B 17.27A 2.594 0.0050 1.540B 5.226BA 13.586A 2.061 0.0027
EAA 13.25B 28.63B 120.79A 16.619 0.0007 16.85B 31.09B 122.66A 16.867 0.0009
NEAA 9.17B 23.64B 68.98A 8.841 0.0006 23.17B 42.21B 162.80A 19.655 0.0003

SE: standard error of means; EAA: essential amino acids; NEAA: non-essential amino acids. Values in the same row with different letters (A and B) are considered to be significantly different (P<0.01)