Open AccessFish Offal Recycling by the Black Soldier Fly Produces a Foodstuff High in Omega‐3 Fatty Acids
Author(s) -
StHilaire Sophie,
Cranfill Katie,
McGuire Mark A.,
Mosley Erin E.,
Tomberlin Jeffery K.,
Newton Larry,
Sealey Wendy,
Sheppard Craig,
Irving Stephen
Publication year - 2007
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.2007.00101.x
Subject(s) - hermetia illucens , biology , docosahexaenoic acid , food science , eicosapentaenoic acid , fish meal , manure , fish oil , fatty acid , linolenic acid , polyunsaturated fatty acid , fish <actinopterygii> , larva , linoleic acid , fishery , botany , agronomy , biochemistry
.— The black soldier fly, Hermetia illucens , has the potential to reduce animal waste on livestock facilities and produce an animal‐grade feedstuff high in protein and fat. The lipid content of insects is largely dependent on their diet. Data from this study suggest that black soldier fly prepupae incorporate α‐linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) when fish offal is included in their diet. Fly larvae were fed three different proportions of fish offal and cow manure diets over a 21‐d trial. An additional group of larvae were fed 22% fish offal diet within 24 h of their pupation. Larvae fed fish offal were, on average, 30% lipid, which was 43% more than the controls fed cow manure only, and approximately 3% of this lipid was omega‐3 fatty acids (EPA, DHA, and ALA). Furthermore, this concentration of omega‐3 fatty acids was achieved within 24 h of feeding fish offal. These omega‐3 fatty‐acid‐enhanced prepupae may be a suitable fish meal and fish oil replacement for carnivorous fish and other animal diets. In addition, they may provide a method of reducing and recycling fish offal from processing plants.