TABLE 2:
Revenues and costs calculated in production models for dairy cattle in the UK and France (FR)
| Revenues and costs | Equations |
|---|---|
| Revenues | |
| UK-FR: milk sold | Total milk produced (l) x price of milk per litre (£) |
| UK-FR: dairy x dairy male calves (DDMCV) sold | NDDMCV sold x DDMCV value (£) |
| UK-FR: dairy x beef male calves (DBMCV) sold | NDBMCV sold x DBMCV value (£) |
| UK-FR: dairy x dairy female calves (DDFCV) sold | NDDFCV sold x DDFCV value (£) |
| UK-FR: dairy x beef female calves (DBFCV) sold | NDBFCV sold x DBFCV value (£) |
| UK: non-calving heifers sold | NH not calving and sold x cull value cow (£) |
| UK-FR: revenues from cows culled | NC culled x cull value cow (£) |
| Replacement costs | |
| FR: costs of purchasing heifer calves | NH bought x price of a replacement heifer calf (£) |
| UK: costs of purchasing in-calf heifers | NH bought x price of an in-calf replacement heifer (£) |
| UK-FR: costs of raising own heifers | NH that need to be raised to maintain the 100 milking spaces given the production parameters specified x costs of heifer rearing (£) |
| Feeding costs | |
| UK-FR: costs of feed concentrate in cows | Concentrates (kg) per litre of milk produced x price of dairy concentrate per tonne/1000 (£) x total milk produced (l) |
| UK: costs of forage in cows | NC x [Forage costs (£) per hectare/(NC per hectare of forage)] |
| UK: costs of bulk feed | NC x costs of bulk feed per cow (£) |
| FR: costs of forage in cows | NC x forage costs per cow (£) |
| UK-FR: costs of milk replacer in calves sold | NCV reared x price of milk per litre (£) x milk replacer (kg) per calf |
| Veterinary and disposal costs | |
| UK-FR: veterinary costs in cows | NC x total veterinary costs per cow (£) |
| UK: costs of disposing dead cows | NC that die x disposal costs dead calf, cow or heifer (£) |
| UK: costs of disposing dead heifers | NH that die x disposal costs dead calf, cow or heifer (£) |
| UK: costs of disposing dead calves | NCV that die x disposal costs dead calf, cow or heifer (£) |
| Other variable costs | |
| UK-FR: costs of artificial insemination | NC x costs of artificial insemination per cow (£) |
| UK-FR: costs of bedding | NC x costs of bedding per cow (£) |
| UK-FR: miscellaneous costs | NC x miscellaneous costs per cow (£) |
Input values are specific to each production system. Number (N) and quantities of animals/products indicated in the equations are obtained from the production models
C, cow; CV, calf; H, heifer