Understanding Feed Conversion Ratio
Feed conversion ratio (FCR) is the most important economic metric in aquaculture. It measures how efficiently fish convert feed into body mass. A lower FCR means less feed is needed per unit of growth, directly reducing production costs. FCR varies by species, life stage, water quality, feed formulation, and management practices. Monitoring FCR over time helps identify problems early — a rising FCR often signals health issues, poor feed quality, or environmental stress.