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Table 6 Comparison of free AA in sow blood plasma at different physiological stages

From: Regulation of amino acid transporters in the mammary gland from late pregnancy to peak lactation in the sow

AA, μmol/L D − 17 D 1 D 17 P-value
Thr 21.03 ± 2.00A 47.44 ± 4.31B 15.26 ± 1.28A 0.00
Ser 15.99 ± 1.73a 22.27 ± 2.14b 14.42 ± 1.09a 0.02
Glu 22.35 ± 0.65a 27.19 ± 3.33b 23.15 ± 1.56ab 0.03
Gly 70.11 ± 3.48B 47.34 ± 1.49Aa 56.40 ± 1.26Ab 0.00
Ala 34.30 ± 3.00A 56.75 ± 5.44B 25.91 ± 0.86A 0.00
Val 1.77 ± 0.11A 5.14 ± 0.68B 2.63 ± 0.26A 0.00
Cys 13.26 ± 0.99A 18.71 ± 1.60B 11.20 ± 0.67A 0.00
Met 27.15 ± 1.22A 37.87 ± 3.98B 26.54 ± 0.85A 0.01
Ile 20.14 ± 1.33A 30.82 ± 3.73B 21.32 ± 0.81A 0.01
Leu 18.33 ± 0.44 22.46 ± 2.68 17.92 ± 1.85 0.24
Tyr 22.08 ± 1.49Aa 32.05 ± 2.95B 28.18 ± 0.92Ab 0.01
Phe 12.74 ± 1.03Aa 18.25 ± 2.36Ab 20.01 ± 1.09B 0.03
Orn 6.43 ± 0.69 8.59 ± 1.46 6.68 ± 0.61 0.27
Lys 18.86 ± 2.08A 34.41 ± 2.77B 20.31 ± 2.17A 0.00
His 8.75 ± 1.09a 13.16 ± 1.62b 10.36 ± 1.49a 0.02
Arg 42.28 ± 3.61 40.86 ± 3.61 42.01 ± 5.85 0.31
Asp 1.03 ± 0.17a 1.96 ± 0.21b 1.44 ± 0. 15ab 0.04
  1. Note: All data shown as means ± SEM, values with the same lower case letter superscripts do not differ (P > 0.05), with different lower case letter superscripts differ (P < 0.05), and with different capital letter superscripts differ (P < 0.01)