Mean (±SE) moisture, protein, lipid, and ash of whole‐body juvenile Nile tilapia fed practical diets containing plant and animal protein sources either singly or in combinations as partial or total replacement of fish meal (experiment 2). Values are means of four replications containing five fish per replication. Mean values within a row followed by different letters are significantly different (P < 0.05). SPC = soy protein concentrate; see Table 1 for definition of other abbreviations.