Figure 3: Amylase activity (U = µg maltose liberated · mL-1 of enzyme extract per min) in different strains (1, rf6; 2, mf6; 3, of6; 4, hf5; 5, ff2; 6, ff4; 7, af1; 8, cf4) isolated from the experimental diets rf from Diet 1, mf from Diet 2, of from Diet 3, ff from Diet 5, af from Diet 6 and cf from Control.