Assessment of Vegetable and Fruit Substrates as Potential Rearing Media for Hermetia illucens (Diptera: Stratiomyidae) Larvae
Articolo
Data di Pubblicazione:
2017
Citazione:
Assessment of Vegetable and Fruit Substrates as Potential Rearing Media for Hermetia illucens (Diptera: Stratiomyidae) Larvae / C. Jucker, D. Erba, M.G. Leonardi, D. Lupi, S. Savoldelli. - In: ENVIRONMENTAL ENTOMOLOGY. - ISSN 0046-225X. - 46:6(2017 Dec), pp. 1415-1423. [10.1093/ee/nvx154]
Abstract:
Hermetia illucens (L.) (Diptera: Stratiomyidae) is able to consume a wide range of organic matter and is of particular
interest for waste management. The nutritional value of preimaginal stages, in particular the protein content, makes
this species a valid candidate for use as feed for other organisms. Vegetables and fruits are promising rearing
substrates for insects produced for this purpose according to the EU regulation. In order to examine the effects
of diets on insect performance and chemical composition, larvae were reared on the following substrates: 1) fruit
(apple, pear, and orange); 2) vegetable (lettuce, green beans, and cabbage); and 3) mixed fruits and vegetables. High
percentages of survival were observed on all diets, but there were differences among weights of larvae, pupae, and
adults, with weights of larvae reared on mixed fruits and vegetables lower than on other diets. Pupae reared on
the mixed diet were heaviest, and also morphometric measurements of adults were highest. Larvae reared on fruit
diets had the highest fat content, comprising mostly saturated fatty acids; the highest content of essential n-3 fatty
acids was found in vegetable reared larvae and that of n-6 in mixed reared larvae. Larvae reared on the mixed diet
had the highest protein content. Calcium contents were high and moderate amounts of iron and zinc were found.
H. illucens showed the capability to develop on vegetable and fruits diets displaying different nutrient profiles and
biological performances. The best-performing rearing strategy should vary in relation to the final use of H. illucens.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
nutritional composition; black soldier fly; preimaginal growth; biodegradation agent; protein content
Elenco autori:
C. Jucker, D. Erba, M.G. Leonardi, D. Lupi, S. Savoldelli
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