Table 3 Effects of dietary supplementation with 0 (control) or 0.4% L-arginine (Arg) between d 14 and d 30 of gestation on concentrations of amino acids and related metabolites in the maternal uterine arterial plasma and in fetal fluids of gilts

Ala

843 ± 55

425 ± 20^*

661 ± 20

595 ± 23^†

258 ± 16

268 ± 18

269 ± 15

254 ± 13

β-Alanine

7.2 ± 0.46

7.1 ± 0.39

16.3 ± 0.8

15.8 ± 1.1

9.4 ± 0.68

9.7 ± 0.84

8.1 ± 0.55

8.2 ± 0.42

Arg

148 ± 6.5

203 ± 7.9^*

367 ± 12

420 ± 15^†

181 ± 7.4

272 ± 9.4^*

152 ± 10

155 ± 9.1

Asn

67.2 ± 4.4

62.0 ± 3.7

164 ± 7.6

157 ± 8.1

62.2 ± 3.0

66.7 ± 3.5

52.0 ± 2.2

53.3 ± 2.6

Asp

14.1 ± 0.7

12.6 ± 0.9

353 ± 16

346 ± 18

15.5 ± 0.65

16.9 ± 0.72

15.2 ± 0.71

15.6 ± 0.52

Citrulline

63.5 ± 2.6

62.3 ± 2.3

19.7 ± 1.0

19.3 ± 1.1

10.3 ± 0.54

10.6 ± 0.47

8.2 ± 0.46

8.5 ± 0.39

Cys¹

196 ± 7.8

204 ± 9.3

266 ± 9.4

269 ± 10

76.7 ± 3.7

78.0 ± 4.4

35.7 ± 1.8

35.3 ± 1.7

Glu

203 ± 9.2

178 ± 12

705 ± 22

657 ± 19

129 ± 5.9

143 ± 6.2

132 ± 7.4

125 ± 8.1

Gln

472 ± 20

459 ± 18

816 ± 25

805 ± 32

630 ± 23

709 ± 27^†

680 ± 18

692 ± 35

Gly

779 ± 34

738 ± 41

873 ± 40

883 ± 30

847 ± 38

1,129 ± 57^*

347 ± 11

339 ± 14

His

78.7 ± 4.9

80.1 ± 3.8

185 ± 7.3

173 ± 8.0

78.8 ± 5.4

82.1 ± 5.7

48.6 ± 3.0

49.4 ± 2.4

Hyp

21.9 ± 1.6

21.4 ± 1.8

102 ± 5.9

108 ± 7.4

51.6 ± 2.4

52.8 ± 3.0

35.2 ± 1.6

36.4 ± 2.0

Ile

121 ± 5.2

114 ± 6.5

177 ± 6.9

171 ± 5.8

29.8 ± 1.5

29.1 ± 2.3

51.5 ± 2.7

50.8 ± 3.2

Leu

207 ± 8.0

189 ± 7.2

225 ± 11

216 ± 8.9

65.2 ± 4.2

66.3 ± 3.4

133 ± 8.4

139 ± 7.0

Lys

176 ± 16

168 ± 13

410 ± 19

414 ± 16

358 ± 15

371 ± 17

204 ± 5.9

198 ± 8.3

Met

48.8 ± 2.4

46.3 ± 1.7

195 ± 9.0

174 ± 9.8

21.6 ± 1.6

21.3 ± 1.1

48.1 ± 2.0

47.4 ± 3.7

Ornithine

81.0 ± 6.6

105 ± 7.6^†

163 ± 5.4

182 ± 6.0^†

113 ± 6.1

142 ± 6.5^†

104 ± 6.0

102 ± 6.7

Phe

75.6 ± 3.8

70.3 ± 4.2

175 ± 5.4

167 ± 6.9

37.7 ± 1.9

38.4 ± 2.6

70.5 ± 4.4

71.2 ± 3.7

Pro

238 ± 7.6

277 ± 9.5^*

383 ± 13

443 ± 16^*

256 ± 13

277 ± 8.5

104 ± 6.5

108 ± 8.6

Ser

124 ± 5.8

109 ± 6.5

486 ± 15

461 ± 19

569 ± 26

723 ± 28^*

365 ± 17

361 ± 15

Taurine

107 ± 7.5

114 ± 6.1

936 ± 37

963 ± 35

461 ± 20

458 ± 22

114 ± 7.5

110 ± 6.2

Thr

175 ± 8.2

166 ± 9.5

390 ± 13

376 ± 11

221 ± 11

215 ± 13

229 ± 12

224 ± 16

Trp

56.8 ± 1.9

55.4 ± 2.3

68.5 ± 3.7

73.4 ± 3.4

14.1 ± 1.0

14.5 ± 1.1

14.3 ± 0.86

13.6 ± 0.94

Tyr

97.5 ± 6.2

96.1 ± 7.5

198 ± 7.4

187 ± 8.1

46.9 ± 2.3

48.2 ± 2.6

53.5 ± 3.1

52.8 ± 2.9

Val

267 ± 10

254 ± 13

286 ± 8.8

108 ± 7.4

88.6 ± 6.1

90.7 ± 5.8

175 ± 8.8

169 ± 9.1

Glucose

5,341 ± 83

5,279 ± 74

294 ± 15

286 ± 17

1,394 ± 84

1,540 ± 61

1,496 ± 75

1,415 ± 64

Fructose

505 ± 31

508 ± 38

78.0 ± 3.2

80.5 ± 3.7

2,538 ± 169

2,467 ± 121

2,515 ± 107

2,305 ± 101

Glycerol

115 ± 6.3

121 ± 7.4

59.2 ± 3.4

61.3 ± 3.9

230 ± 9.5

168 ± 8.1^*

116 ± 9.4

81.1 ± 5.3^*