Feed Conversion Ratio (FCR)
Calculate the feed conversion ratio (FCR) and feed conversion efficiency (FCE) for aquaculture, poultry, livestock, and agricultural operations.
Feed Conversion Ratio (FCR)
basicCalculate feed efficiency in aquaculture and livestock
Formula
FCR = feed intake / weight gain
How It Works
Feed Conversion Ratio (FCR) is the mass of feed required to produce one unit of body weight gain. Lower FCR means better feed efficiency.
FCR = Feed Given (kg) / Weight Gain (kg)
FCE (%) = 1 / FCR × 100
Example
100 kg of feed produced 50 kg of fish weight gain:
FCR = 100/50 = 2.00
FCE = 1/2.00 × 100 = 50%
An FCR of 2.0 is typical for tilapia. Chicken FCR is usually 1.5-2.0. Shrimp FCR ranges 1.2-1.8.
Frequently Asked Questions
What is a good FCR value?
FCR varies by species: Tilapia 1.5-2.0, Salmon 1.1-1.5, Shrimp 1.2-1.8, Chicken 1.5-2.0, Cattle 6-10. Lower FCR means more efficient feed conversion.
What factors affect FCR?
Water temperature, water quality, feed quality, feeding frequency, stocking density, disease status, and genetics all impact FCR. Optimal conditions minimize FCR.