From: Alternative prediction methods of protein and energy evaluation of pig feeds
Calculation of energy values of pig feeds | Â |
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1. Gross energy (GE, MJ/kg of dry matter) | Â |
2. Digestible energy (DE, MJ/kg of dry matter) | Â |
DE = (GE × 1.106 × DIN VITRO OM – 14.0)/100 |  |
DIN VITRO OM: In vitro digestibility of organic matter expressed in % | Â |
3. Metabolizable energy (ME, MJ/kg of dry matter) | Â |
ME = DE – 0.17 × N |  |
N: Nitrogen content in feed expressed in % of dry matter | Â |
4. Net energy (NE, MJ/kg of dry matter) | Â |
NE = DE × 0.75 – 1.88 |  |