Collect reliable data before calculating
Keep dated, house-level records of feed, water, weights, mortality and management events. These provide context when performance changes.
Calculation checklist
- Flock: placement count, age, birds sold, mortality and culls.
- Weight: measurement date, scale check and the denominator used for FCR.
- Feed: deliveries, opening and closing stock, transfers and price by feeding phase.
- Additive: dose, treated feed quantity and whether its cost is already included in feed price.
- Economics: currency, sale price and other variable costs relevant to the comparison.
Two accounting checks
Feed consumed = opening inventory + deliveries + transfers in − closing inventory − transfers out. Record measured wastage separately for analysis, while retaining its cost in the economic total.
If the feed price already includes the additive, do not add the same expense again. Use kilograms or pounds consistently, and distinguish a metric tonne (1,000 kg) from a US short ton (2,000 lb).
Before comparing flocks
Resolve missing records and note changes in health, environment or management. Missing inputs should be treated as uncertainty, not automatically replaced with zero.
Recorded feed: what to include
Enter total flock feed used, including charged wastage and feed consumed by birds before mortality. Do not enter deliveries alone if stock remains or feed was transferred. The current recorded-feed option accepts a total; it does not reconcile inventory or estimate wastage for you. Do not add mortality-related feed a second time when it is already included in the recorded total.
Calculate a weighted feed price
Open the advanced stage-price option and enter each stage’s quantity and price in the selected currency and measurement system (metric tonnes or US short tons). Add or remove stages to match your program, then select “Use weighted price in calculations”.
| Stage | Quantity | Price / metric tonne |
|---|---|---|
| Starter | 10 tonnes | $500 |
| Grower | 30 tonnes | $450 |
| Finisher | 60 tonnes | $400 |
Total feed cost = $42,500. Total quantity = 100 tonnes. Weighted price = $425 per metric tonne, not the simple average of $450. These are hypothetical educational values.
Stage quantities determine the blended price only. They do not replace either scenario’s total feed quantity. The same blended price is used for both scenarios; the displayed feed-price field converts to price per US short ton when US units are selected.
Try your farm numbers