Table 1 Energy equivalents of inputs and outputs in broiler production [29]
Inputs/outputs | Units | Energy equivalent (MJ/unit) |
|---|---|---|
Inputs | ||
 Chick | kg | 10.33 |
 Human labour | h | 1.96 |
 Machinery | ||
  Polyethylene | Kg | 46.3 |
  Galvanized iron | Kg | 38 |
  Steel | Kg | 62.7 |
  Electric motor | Kg | 64.8 |
 Feed | ||
  Maize | kg | 7.9 |
  Soybean meal | kg | 12.06 |
  Di-calcium phosphate | kg | 10 |
  Minerals and vitamins | kg | 1.59 |
  Fatty acid | kg | 9 |
 Electricity | kWh | 3.6 |
Outputs | ||
 Broiler | kg | 10.33 |
 Manure | kg | 0.3 |