TABLE 4.
Weight gain, organ weights, and tissue analyses in pigs fed PEN supplemented with CO, ARG, or ARG+L-NAME1
| CO | ARG | ARG+L-NAME | |
| Body weight final, g | 3057 ± 120 | 2846 ± 114 | 2671 ± 173 |
| Weight gain, g⋅kg−1⋅d−1 | 80.6 ± 4.5b | 59.7 ± 4.0a | 49.5 ± 4.3a |
| Proximal small intestine | |||
| Weight, g/kg | 11.7 ± 0.5a | 14.7 ± 0.6b | 14.2 ± 0.9b |
| Protein mass, mg/kg | 1140 ± 54a | 1497 ± 63b | 1365 ± 60b |
| DNA mass, mg/kg | 80.5 ± 4.6a | 103.9 ± 5.4b | 89.6 ± 6.2a |
| Villus height, μm | 569 ± 46 | 590 ± 35 | 615 ± 65 |
| Villus area, mm | 42.8 ± 2.7 | 44.5 ± 2.1 | 45.7 ± 4.4 |
| Crypt depth, μm | 140.3 ± 3.9 | 143.5 ± 6.9 | 143.2 ± 9.6 |
| Muscularis thickness, μm | 149.4 ± 4.0 | 147.6 ± 6.7 | 153.6 ± 10.6 |
| BrdU-positive crypt cells, % | 18.0 ± 1.5 | 15.3 ± 1.4 | 16.8 ± 1.9 |
| Distal small intestine | |||
| Weight, g/kg | 14.4 ± 0.9a | 16.3 ± 1.0ab | 17.0 ± 1.3b |
| Protein mass, mg/kg | 1346 ± 106a | 1577 ± 115ab | 1609 ± 155b |
| DNA mass, mg/kg | 94.7 ± 5.2 | 113.5 ± 8.2 | 107.5 ± 12.7 |
| Liver | |||
| Weight, g/kg | 35.7 ± 0.6 | 33.8 ± 1.1 | 36.5 ± 1.4 |
| Protein mass, mg/kg | 5213 ± 160 | 5159 ± 197 | 5714 ± 203 |
| DNA mass, mg/kg | 172.5 ± 5.1 | 182.2 ± 7.7 | 181.3 ± 10.7 |
1
Means ± SEM, = 9–11. Means in a row with superscripts without a common letter differ, P < 0.05.