Simultaneous estimation of the nutritional contribution of fish meal, soy protein isolate and corn gluten to the growth of Pacific white shrimp (Litopenaeus vannamei) using dual stable isotope analysis

► Isotopic analyses were applied to assess nutritional contributions to L. vannamei. ► The incorporation of fish meal, soy protein isolate and corn gluten was determined. ► Corn gluten supplied higher amounts of dietary nitrogen and carbon than fish meal. ► Information on the suitability of plant-derived proteins as ingredients is presented.