Partial Replacement of Fishmeal with Seafood Discards for Juvenile <i>Penaeus japonicus</i>: Effects on Growth, Flesh Quality, Chemical and Fatty Acid Composition

Abstract

The present study was designed to assess the influence of fishmeal replacement with increasing percentages of fresh seafood discards (0, 25, 50 and 75%) in diets for Penaeus japonicus on growth performance, physical characteristics and the chemical and fatty acid composition of shrimp flesh. Each diet was administered for 108 days, and the trial was assayed in triplicate. The final body weight and the specific growth rate were significantly higher (p p p p < 0.05) affected the lower atherogenic and thrombogenic indices. In conclusion, replacing 75% of fishmeal with seafood discards provided satisfactory results. An economic analysis based on ESG indicators and PESTLE methodology is provided in order to show the socio-economic and governance impacts affecting the replacement of shrimps’ diet with fish discard.

Keywords

• <i>Penaeus japonicus</i>
• kuruma shrimp
• flesh quality
• fatty acid profile
• seafood discards
• fishmeal replacement