Figure 2

Lysine requirements of several species of fish compared to content in different protein sources expressed as % of Crude Protein (CP). White symbols: Nile tilapia requirement; dark grey symbols: Atlantic salmon requirement; black symbols: shrimp requirement; light grey symbols: European sea bass requirement. ◊: Vital Wheat Gluten; ○: Soybean Meal; +: Pea Protein Concentrate; □: Soy Protein Concentrate; ∆: Fish Meal. Dotted line: requirement of fish = content in protein source.