Frequently Asked Questions

Krill is one of the most abundant species on earth with a biomass of around 500 million tons. The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) restricts harvesting to a specific region in the Southern Ocean, Area 48, and to an annual krill harvest of 1% of the total biomass (the precautionary level for other fisheries is 10% of the total biomass). 
Due to its inherent advantages – i.e., feeding stimulants, omega-3 fatty acids bound to phospholipids, highly digestible peptides, naturally pure and stable, sourced sustainably – krill inclusion into shrimp and fish feed improves growth and yield. In particular, in diets low in fish meal, krill’s feed attractants increase palatability and improve growth performance. Moreover, krill is used in functional feeds for fish to increase fillet quality. Interestingly, reduced mortality and heart pathology during viral infection is seen in studies with salmon fed krill meal.

（1）Palatability

Krill meal： Low molecular weight compounds that act as an effective attractant and flavoring agent.
Fish meal ：Less effective

（2）Antioxidant properties

Krill meal：It has a high carotene (asthaxanthin) content and natural tocopherols.
Fish meal ：None

（3）Fluoride

Krill meal：High contents of natural organic fluorine.
Fish meal ：Low content

（4）Natural pigments

Krill meal：Increase flesh pigmentation of farmed species. Acts as a powerful antioxidant.
Fish meal ：None

（5）Steroidal components

Krill meal：Growth promoting agent
Fish meal ：None

（6）Chitin

Krill meal：Immune system stimulant for some fish species.
Fish meal：None

（7）Lipids

Krill meal：Sufficient Omega-3s fatty acids content. Fatty acid in the form of phospholipids (good bioavailability)
Fish meal：Sufficient Omega-3s fatty acids content. Fatty acids in the form of triglycerides ( poor availability)

（8）Undesirable substances

Krill meal：Low contents of dioxins, PCB`s and heavy metals.
Fish meal：Risk of high contents of Dioxins, PCB`s and heavy metals.