Growth, feed conversion and chemical composition of Atlantic salmon (Salmo salar L.) and Atlantic halibut (Hippoglossus hippoglossus L.) fed diets supplemented with krill or amphipods

• DOI: 10.1111/j.1365-2095.2007.00466.x
• Publication Date: 2007-06-25T04:32:09Z
• Authors: J. SUONTAMA; Ø. KARLSEN; M. MOREN; G.-I. HEMRE; W. MELLE; E. LANGMYHR; H. MUNDHEIM; E. RINGØ; R.E. OLSEN
• Keywords: Hippoglossus hippoglossus; Antarctic krill

The effects of partial replacement fish meal (FM) with made from northern krill (Thysanoessa inermis), Antarctic (Euphausia superba) or Arctic amphipod (Themsto libellula) as protein source in the diets for Atlantic salmon (Salmo salar L.) and halibut (Hippoglossus hippoglossus on growth, feed conversion, macro-nutrient utilization, muscle chemical composition welfare were studied. Six experimental prepared using a low-temperature FM diet control. other included where 20, 40 60% dietary was replaced krill, two at 40% level. All iso-nitrogenous iso-caloric. grew 410 g to approximately 1500 during 160 day experiment, 345 500–600 150 experiment. Inclusion enhanced specific growth rate salmon, especially first 100 days (P < 0.01), dose–response manner over feeding period 0.05). Feed conversion ratio did not differ between treatments, no difference found dry matter digestibility, digestibility composition. Good rates, blood parameters within normal ranges low mortalities all treatments indicted that health affected either fed various zooplankton diets.