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

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

AA, μmol/L	D − 17	D 1	D 17	P-value
Thr	21.03 ± 2.00^A	47.44 ± 4.31^B	15.26 ± 1.28^A	0.00
Ser	15.99 ± 1.73^a	22.27 ± 2.14^b	14.42 ± 1.09^a	0.02
Glu	22.35 ± 0.65^a	27.19 ± 3.33^b	23.15 ± 1.56^ab	0.03
Gly	70.11 ± 3.48^B	47.34 ± 1.49^Aa	56.40 ± 1.26^Ab	0.00
Ala	34.30 ± 3.00^A	56.75 ± 5.44^B	25.91 ± 0.86^A	0.00
Val	1.77 ± 0.11^A	5.14 ± 0.68^B	2.63 ± 0.26^A	0.00
Cys	13.26 ± 0.99^A	18.71 ± 1.60^B	11.20 ± 0.67^A	0.00
Met	27.15 ± 1.22^A	37.87 ± 3.98^B	26.54 ± 0.85^A	0.01
Ile	20.14 ± 1.33^A	30.82 ± 3.73^B	21.32 ± 0.81^A	0.01
Leu	18.33 ± 0.44	22.46 ± 2.68	17.92 ± 1.85	0.24
Tyr	22.08 ± 1.49^Aa	32.05 ± 2.95^B	28.18 ± 0.92^Ab	0.01
Phe	12.74 ± 1.03^Aa	18.25 ± 2.36^Ab	20.01 ± 1.09^B	0.03
Orn	6.43 ± 0.69	8.59 ± 1.46	6.68 ± 0.61	0.27
Lys	18.86 ± 2.08^A	34.41 ± 2.77^B	20.31 ± 2.17^A	0.00
His	8.75 ± 1.09^a	13.16 ± 1.62^b	10.36 ± 1.49^a	0.02
Arg	42.28 ± 3.61	40.86 ± 3.61	42.01 ± 5.85	0.31
Asp	1.03 ± 0.17^a	1.96 ± 0.21^b	1.44 ± 0. 15^ab	0.04

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)

ISSN: 2049-1891