Dietary impacts of sulphuric acid extracted fish bone compounds on astaxanthin utilization and muscle quality in Atlantic salmon (Salmo salar)

The aim of this study was to evaluate how a fish bone hydrolysate (FBH) from blue whiting (Micromesistius poutassou) fish bones may improve muscle astaxanthin (Ax) deposition in Atlantic salmon (Salmo salar). Fish (1.7 kg) were reared in 12 net-pens and fed with one of four practical formulated diets for 78 days. All diets (D) were balanced to meet dietary phosphorus (P) requirement (8 g kg−1 P): the control diet (D1) and diet D4 were added...