Table 8.
LCA of selected environmental impacts (per 1,000 kg of carcass weight) of pork production systems using different growing-finishing four-phase feeding programs and considering manure produced as residue in the Opteinics model
| Feeding program1 | ||||
|---|---|---|---|---|
| Items | CSBM | LP | DDGS | DDGS + IVT |
| Climate change, kg CO2 equiv. | 3,412 | 3,521 | 4,036 | 4,046 |
| Ozone depletion, kg CFC-11 equiv. | 0.000022 | 0.000027 | 0.000021 | 0.000028 |
| Acidification, mol H + equiv. | 95.4 | 88.5 | 94.72 | 94.25 |
| Terrestrial eutrophication, mol N equiv. | 419.5 | 387.9 | 411.9 | 408.5 |
| Marine eutrophication, kg N equiv. | 41.16 | 42.66 | 42.46 | 42.12 |
| Freshwater eutrophication, kg P equiv. | 23.13 | 24.18 | 26.51 | 26.35 |
| Particulate matter, disease incidence | 0.000758 | 0.000714 | 0.000755 | 0.000752 |
| Water use, m3 water equiv. | 1,678 | 1,551 | 2,516 | 2,468 |
| Fossil resource use, MJ | 19,257 | 19,974 | 27,475 | 28,357 |
| Land use, soil quality index | 254,870 | 229,801 | 185,680 | 185,291 |
1CAA; DDGS = CSBM diets with 30% DDGS; DDGS + IVT = DDGS diets supplemented with L-Ile, L-Val, and L-Trp.