Table 3.

[¹⁵N]arginine transactions across the PDV and kidney of neonatal (7-day-old) and young (35-day-old) pigs

	Neonates	Young	P Value
PDV, µmol/l
[15N]arginine in	1.74 ± 0.32	0.98 ± 0.19	<0.088
[15N]arginine out	1.74 ± 0.26	1.02 ± 0.23	<0.071
[15N]arginine uptake	0.14 ± 0.05	0.11 ± 0.03	<0.62
[15N]arginine through	1.60 ± 0.28	0.87 ± 0.18	<0.069
[15N]arginine balance	0.14 ± 0.07a	0.14 ± 0.07a	<0.99
Arginine balance	1.62 ± 0.77a	2.33 ± 1.21a	<0.62
Kidney, µmol/l
[15N]arginine in	1.74 ± 0.32	0.98 ± 0.19	<0.088
[15N]arginine out	3.63 ± 0.74	3.11 ± 0.36	<0.57
[15N]arginine uptake	0.11 ± 0.02	0.05 ± 0.02a	<0.093
[15N]arginine through	1.64 ± 0.32	0.94 ± 0.19	<0.11
[15N]arginine balance	1.99 ± 0.48	2.17 ± 0.20	<0.76
Arginine balance	18.28 ± 4.38	32.31 ± 2.94	<0.032

Values are means ± SE. PDV, portal drained viscera.

^aNot different from zero.