FEED-UTILIZATION EFFICIENCIES OF ATLANTIC SALMON (SALMO-SALAR L) PARR - EFFECT OF A SINGLE SUPPLEMENTARY ENZYME

1. Salmon Salmo salar parr were fed three rations of a control diet and one ration of a diet containing a supplementary enzyme, alpha-amylase. 2. X-Radiography was used to estimate the consumption rates of individual fish. 3. Consumption-growth relationships for wet weight, dry weight, nitrogen and carbon were established for the two diets. 4. The supplementary enzyme had no statistically significant effect on the consumption-growth relationships or feed utilization efficiency.