Weight gain plate a used at 45% crude protein (grouped and isolated crayfish: 14.56 mm CL, 691 mg W).
Final growth values of isolated crayfish were significantly higher than those of grouped crayfish for all protein levels tested.
In experiment 2, four practical diets (50% crude protein content) were prepared to test replacement levels
of FM protein by SBM protein of 0% (control group), 25%, 35% or 45%, in crayfish housed in groups.