Table 4 Effects of dietary sugar beet pulp on the apparent total tract digestibility (ATTD) of dry matter, protein, energy and the available energy of diets in growing pigs
From: The effects of dietary fiber level on nutrient digestibility in growing pigs
Items | Sugar beet pulp, % | P Values | |||||||
|---|---|---|---|---|---|---|---|---|---|
0.0 | 15.0 | 25.0 | 35.0 | 45.0 | 55.0 | SEM | Linear | Quadratic | |
Intake | |||||||||
Dry matter intake, g/d | 1,088.0 | 1,095.0 | 1,091.8 | 1,083.0 | 1,022.3 | 968.3 | 56.96 | 0.46 | 0.26 |
Nitrogen intake, g/d | 33.4 | 33.6 | 34.2 | 33.6 | 29.8 | 29.6 | 1.69 | 0.40 | 0.28 |
Gross energy intake, MJ/d | 17.9 | 18.7 | 18.5 | 18.8 | 17.1 | 16.3 | 0.58 | 0.10 | 0.07 |
Excretion | |||||||||
Fecal nitrogen, g/d | 1.9 | 3.3 | 4.8 | 5.2 | 4.9 | 6.1 | 0.44 | <0.01 | <0.01 |
Urinary nitrogen, g/d | 9.3 | 7.6 | 7.4 | 7.0 | 6.8 | 6.2 | 1.00 | 0.27 | 0.54 |
Urinary:fecal nitrogen ratio | 4.9 | 2.3 | 1.6 | 1.4 | 2.0 | 1.1 | 0.13 | 0.10 | 0.17 |
Fecal energy, MJ/d | 0.4 | 1.1 | 1.6 | 1.9 | 2.0 | 2.3 | 0.13 | <0.01 | <0.01 |
Urinary energy, MJ/d | 0.9 | 0.7 | 0.6 | 0.6 | 0.4 | 0.4 | 0.11 | <0.01 | 0.02 |
ATTD, % | |||||||||
Dry matter | 95.4 | 91.8 | 88.3 | 86.6 | 87.8 | 83.5 | 0.32 | <0.01 | <0.01 |
Nitrogen | 94.6 | 90.0 | 85.9 | 84.4 | 83.7 | 80.0 | 1.00 | <0.01 | <0.01 |
Energy | 97.8 | 94.5 | 91.4 | 89.9 | 88.4 | 86.3 | 0.47 | <0.01 | <0.01 |
Energy content of diets, MJ/kg | |||||||||
Digestible energy | 14.7 | 14.8 | 14.2 | 14.0 | 13.6 | 13.1 | 0.07 | <0.01 | 0.06 |
Metabolizable energy | 14.0 | 14.2 | 13.7 | 13.5 | 13.2 | 12.8 | 0.10 | <0.01 | 0.71 |