Table 1.
Intake, arterial and portal concentrations, and net portal mass balances of essential amino acids in piglets receiving either HP or LP diets continuously
| EAA | HP-fed piglets (n =
9)
|
LP-fed piglets (n = 8)
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Intake | Concentration;
μmol/Liter
|
Portal
balance
|
Intake | Concentration;
μmol/Liter
|
Portal balance
|
|||||
| Arterial | Portal | μmol/kg per h | Percentage of intake | Arterial | Portal | μmol/kg per h | Percentage of intake | |||
| Thr | 934 | 918 ± 83 | 954 ± 85 | 152 ± 36 | 16 ± 4 | 374 | 456 ± 56 | 448 ± 61 | −31 ± 44* | −1 ± 18§ |
| Val | 765 | 572 ± 49 | 638 ± 48 | 315 ± 31 | 41 ± 4 | 306 | 277 ± 21 | 299 ± 23 | 100 ± 26* | 31 ± 10 |
| Iso | 780 | 299 ± 19 | 348 ± 22 | 218 ± 18 | 28 ± 2 | 312 | 187 ± 14 | 202 ± 14 | 58 ± 11* | 19 ± 4† |
| Leu | 748 | 406 ± 18 | 484 ± 22 | 350 ± 33 | 47 ± 4 | 299 | 237 ± 19 | 267 ± 21 | 119 ± 30* | 40 ± 10 |
| Phe | 254 | 110 ± 5 | 131 ± 5 | 94 ± 9 | 37 ± 4 | 102 | 52 ± 7 | 60 ± 7 | 30 ± 4* | 28 ± 4 |
| Lys | 518 | 616 ± 23 | 678 ± 26 | 277 ± 23 | 54 ± 4 | 207 | 385 ± 29 | 394 ± 28 | 33 ± 12* | 16 ± 6‡ |
Values shown are means ± SEM.
*
A significant difference between HP- and LP-fed piglets at P < 0.001.
†
A significant difference between HP- and LP-fed piglets at P < 0.05.
‡
A significant difference between HP- and LP-fed piglets at P < 0.01.
§
No significant difference from zero.