Calculate FCR (feed conversion ratio), feed efficiency, and profitability analysis for livestock and aquaculture.
Calculate Feed Conversion Ratio (FCR), feed efficiency, and profitability analysis for livestock and aquaculture. Input feed consumed, weight gain or production, feed price, and product price. Get FCR, feed cost, product value, gross profit, profit per kg, and feed cost ratio. FCR is the most important efficiency metric in animal production.
Your pig farm had an FCR of 3.2:1, and you thought "that is just how pigs grow." A consultant pointed out that your feed was stored in a leaky bin — 10% was spoiled by mold, and your feeder was wasting another 8% through spillage. Actual feed consumed by pigs was 22% less than what you bought. Real FCR was 2.5:1 — but your economic FCR (feed purchased / weight gain) was 3.2:1. Fixing the bin and feeder reduced economic FCR to 2.7:1, saving $8 per pig. With 500 pigs per batch and 4 batches/year, that is $16,000/year in savings. FCR is not just genetics and feed quality — it is also feed management and waste reduction.
FCR is the most important efficiency metric. Lower FCR = less feed per unit product = better profitability.
FCR = Feed Consumed ÷ Weight Gain (or Product Output)
A: Broilers: 1.5-2.0:1 (excellent <1.7). Layers: 2.0-2.5:1 (kg feed per dozen eggs). Pigs: 2.5-3.0:1 (excellent <2.6 for finishers). Beef cattle: 5.0-8.0:1 (high grain diets lower, forage diets higher). Dairy cows: 1.2-1.6 kg feed per kg milk (4% fat corrected). Fish (tilapia/catfish): 1.5-2.0:1. Salmon: 1.0-1.2:1. Shrimp: 1.2-1.8:1. FCR varies by: genetics, feed quality, health status, environment (temperature, density), stage (young animals have better FCR), and management. Compare FCR to breed/industry benchmarks, not to other species.
A: Genetics: select breeds/lines with proven feed efficiency. Feed quality: use high-quality, digestible ingredients; balance amino acids (not just crude protein); add enzymes (phytase, carbohydrases) to improve digestibility. Feed management: use feeders that minimize waste (5% max spillage); feed at optimal times (ad lib for broilers, restricted for finishers); ensure fresh, clean water (water intake = feed intake). Health: strict biosecurity; vaccination program; parasite control; treat disease promptly (sick animals have poor FCR). Environment: optimal temperature (thermoneutral zone); proper ventilation; adequate space (overcrowding increases FCR). Record keeping: track FCR by batch, identify problems early. Even a 0.1 improvement in FCR saves significant money — for 10,000 pigs gaining 100 kg each, 0.1 FCR improvement = 10,000 kg less feed = $3,000+ savings.
A: FCR = feed consumed ÷ weight gain (lower is better). Feed efficiency (FE) = weight gain ÷ feed consumed (higher is better). FE = 1/FCR. Example: FCR 2.5 = FE 0.4 (400 g gain per kg feed). Both measure the same thing, just inverted. FCR is more commonly used in the industry because it is intuitive (how much feed per kg gain). Some industries use different terms: poultry uses feed conversion (FCR), dairy uses feed efficiency (kg milk/kg dry matter), beef uses feed:gain ratio. For profitability, economic FCR (feed purchased ÷ gain) matters more than biological FCR (feed consumed ÷ gain), because wasted feed still costs money.