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med.livestock-feed-conversion Calculator
Calculates livestock feed conversion ratio (FCR) from total feed consumed and weight gain, and estimates feed cost per kilogram of gain. FCR is the most important production efficiency metric in animal agriculture — broiler chickens achieve FCR ≈ 1.8; beef cattle require 6–8.
Inputs
Feed Consumed Kg
Reference formula or conversion factor shown for context.
Weight Gain Kg
Body or object weight. For health calculators, usually in kg or lbs.
Initial Weight Kg
Body or object weight. For health calculators, usually in kg or lbs.
Days
Time for one complete cycle (s). Period = 1 / frequency. A 50 Hz signal has a 20 ms period.
Results
feed conversion ratio FCR
The proportional relationship between two quantities.
average daily gain ADG (kg/day)
The arithmetic mean -- sum divided by count.
average daily feed intake ADFI (kg/day)
The arithmetic mean -- sum divided by count.
feed efficiency (kg gain/kg feed)
Useful output divided by total input, as a percentage. True 100% efficiency is impossible — losses appear as heat. LEDs: 30–50%. Electric motors: 85–97%. Switching supplies: 85–95%.
FCR benchmarks
Reference value for comparison — the industry standard, historical average, or target that this result is measured against.