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Title Optimization of Hermetia illucens (L.) egg laying under different nutrition and light conditions
ID_Doc 12548
Authors Macavei, LI; Benassi, G; Stoian, V; Maistrello, L
Title Optimization of Hermetia illucens (L.) egg laying under different nutrition and light conditions
Year 2020
Published Plos One, 15.0, 4
Abstract The black soldier fly Hermetia illucens is gaining growing interest as a tool for the valorisation of bio-waste in a circular economy perspective. Although a wide variety of studies are available for larvae rearing, the indoor breeding of adults still presents a great challenge for industrial purposes. This study was designed to assess the simultaneous influence of 3 different light sources (the Mix of LED UV:blue:green 1:1:3, White LED, Neon light) and 3 types of nutrition (sugar and water, only water, no sugar no water) on adult performances, obtaining different egg production parameters that included the number and weight of the egg masses and single eggs laid by the females, the duration of pre-oviposition and oviposition period, the adult life span, the hatchability of the eggs. Our results showed that production parameters are influenced mainly by nutrition rather than light factor, although light plays an important secondary role. Moreover, the presence of sugar positively affects the egg production (12,93-27,10 mg eggs/female) and increases oviposition period (18,2-31,8 days) and adult lifespan (20,79-27,11 days). Light sources also affect egg production parameters, with the exposure to the Mix of LEDs resulting in the best performance of flies. Results obtained from this study are very useful for the design and management of an efficient industrial black soldier fly mass rearing process.
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