Krill

wpeE.gif (28739 bytes)    wpe52.gif (30729 bytes)

Argent Laboratories is pleased to offer another high quality specialty feed to the aquaculture industry. Freeze-dried Krill (Euphasia pacifica), is one of the very best, nutritionally balanced feeds for  finfish and crustaceans. Not only does Krill improve growth and survival, but it also increases market quality.

WHAT IS KRILL?

Krill are small (25 mm) shrimp-like members of the class Crustacea. They are cold water marine organisms harvested primarily from Arctic and Antarctic waters. The species Euphasia pacifica is found off the western coast of North America. Krill are planktonic and feed on rich algae and zooplankton. As a result, Krill are extremely nutritious when fed as part of an aquaculture diet.

Krill are small (25 mm) shrimp-like members of the class Crustacea. They are cold water marine organisms harvested primarily from Arctic and Antarctic waters. The species Euphasia pacifica is found off the western coast of North America. Krill are planktonic and feed on rich algae and zooplankton. As a result, Krill are extremely nutritious when fed as part of an aquaculture diet.

WHAT IS KRILL SUPERBA?

Superba are large antarctic shrimp. The species Euphasia superba is found off the continunet of Anarctica.

NUTRITION

A substantial body of scientific evidence has demonstrated the nutritive value of both Krills. For example, they contain all of the essential amino acids required by salmonids in quantities that exceed their minimum daily requirements. Proximate analysis show they contain more than 50% protein by net weight. This coupled with the full array of amino acids give both Krill Pacific anf Krill Superba an excellent cost to protein ratio.

TABLE 1 - Proximate Analysis, Argent Freeze-dried Krill Pacific and Krill Superba

Protein 70 % Fat 10.7% Ash 12.6% Carbohydrates 8.5% Moisture 1.3%

HUFA’s 40 % EPA 18.4% DHA 11.1%

Both Krill products contain abundant proportions of highly unsaturated fatty acids (HUFA), a large part of which are the Omega 3 fatty acids which comprise approximately 40% by weight of all fatty acids contained in the organism. Omega 3 fatty acids have been demonstrated to be essential in diets that promote growth and survival of most cultured species. In addition, researchers have isolated a "growth-promoting factor" from non-muscle tissues of Krill. Ongoing research should tell us more about this particular attribute.

Both Krills are also rich in the pigment astaxanthin, a carotenoid shown to improve flesh color and coloration of ornamental fish. Both Krills contain on average 80-120 parts per million (ppm=mg/1) of this carotenoid. Such a figure is indeed significant considering that a fish contains at most 5-8 ppm of astaxanthin in its tissues. It is this pigment that give salmonids and other species their firm red-pink, better tasting flesh - a highly marketable and thus profitable quality. Superior flesh color and taste is a proven result of feeding Krill over commercially prepared diets that do not contain Krill.

Other research indicate that krill, added to the diet of salmonid broodstock, may directly effect hatching success of offspring. Argent Laboratories is currently performing preliminary research to study this and other beneficial effects of Krill in the diet of shrimp and prawns. Currently available scientific evidence indicated that Krill is most beneficial to the culture of crustaceans.

Argent Laboratories goes to great lengths to assure that its Krill is made available in their most nutritious form.

WHAT IS FREEZE-DRYING?

Argent harvests Krill aboard it’s vessels and immediately block freezes the Krill, "locking in" the essential nutrients. Krill is then freeze-dried shortly after harvest to wholly preserve nutritional quality. The product is basically dried without the use of heat, which destroys vitamins and essential nutrients like fatty acids. Freeze-drying removes more than 98% of the water from the Krill. Freeze-drying coupled with vacuum packing preserves Krill’s freshness. The lighter weight saves on shipping costs as well. Of course, all Krill is lot numbered and processed through Quality Control to assure the customer the best product value.

FEEDING

Argent's freeze-dried Krill can be fed whole or are easily ground for addition to feeds. Whole Krill feeding greatly benefits ornamental fish, broodstock and market-size food fish. Feeding a partially broken-up product may be beneficial to larger size food fish. Feeding a partially broken-up product may be beneficial to larger shrimp and prawns. Feed manufacturers can add Krill to their prepared diets as part of the essential portion of animal protein. Most producers add between 1 and 20% of Krill by wet weight to prepared feeds. This translates to 0.20 to 4.0 kg Argent freeze-dried Krill per 100 kg of prepared feed.

PACKAGING AND AVAILABILITY

Freeze-dried Krill is available in 500 gram vacuumed packed cans, 4x500 g per case ready for use. Argent also offers Krill in a nitrogen-flushed 4 kg bulk bag. Shipments can be made to anywhere in the world via Argent's famous "Silver Service" freight forwarding.

Every effort is made to retain adequate stocks of Krill in our warehouse. The harvest of Krill tends to be seasonal, however. Do not hesitate to place your order today !!

                                                                               To Order:  Click Here

                                                                                                    Home