Development, metabolism and nutrient composition of black soldier fly larvae (Hermetia illucens; Diptera: Stratiomydiae) in relation to temerature and diet

Anton Gligorescu, Søren Toft, Henrik Hauggaard-Nielsen, Jørgen Aagaard Axelsen, Søren Achim Nielsen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Bio-conversion of different organic waste streams in Hermetia illucens larval biomass suitable for animal feed is a promising sustainable solution across different sectors. However, environmental factors can affect the allocation of energy to fitness, survival and growth of insects in complex ways and can therefore impact the optimal functionality of bio-conversion systems. This study investigated the influence of temperature and diet quality differences on the metabolic rate (MR), development, growth, food intake, and body nutrient composition of H. illucens larvae. The fifth instar larvae were reared on three artificial diets (unbalanced diets: Protein and Carbohydrate, and control diet: Gainesville) and exposed to two constant temperatures (20 and 27 °C), until they reached the prepupa stage. The MR was measured in the sixth instar larvae and the body nutrient composition was measured in the prepupa larvae. The MR of H. illucens larvae was found to increase with temperature, leading to a higher food intake and faster growth rate. When reared on unbalanced diets, the larvae were found to experience metabolic costs and to consequently increase larval development time and decrease food intake. There was a significant temperature × diet interaction across the investigated parameters, indicating that larvae of H. illucens can prioritise energy allocation and adjust their metabolism in order to ensure further development. The nutrient composition reveals that larval nutrient profile can be enhanced through diets. Nonetheless, caution should be taken when exploring this procedure, as it could be associated with an extra metabolic cost.
OriginalsprogEngelsk
TidsskriftJournal of Insects as Food and Feed
Vol/bind4
Udgave nummer2
Sider (fra-til)123-133
Antal sider11
ISSN2352-4588
DOI
StatusUdgivet - 2018

Citer dette

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title = "Development, metabolism and nutrient composition of black soldier fly larvae (Hermetia illucens; Diptera: Stratiomydiae) in relation to temerature and diet",
abstract = "Bio-conversion of different organic waste streams in Hermetia illucens larval biomass suitable for animal feed is a promising sustainable solution across different sectors. However, environmental factors can affect the allocation of energy to fitness, survival and growth of insects in complex ways and can therefore impact the optimal functionality of bio-conversion systems. This study investigated the influence of temperature and diet quality differences on the metabolic rate (MR), development, growth, food intake, and body nutrient composition of H. illucens larvae. The fifth instar larvae were reared on three artificial diets (unbalanced diets: Protein and Carbohydrate, and control diet: Gainesville) and exposed to two constant temperatures (20 and 27 °C), until they reached the prepupa stage. The MR was measured in the sixth instar larvae and the body nutrient composition was measured in the prepupa larvae. The MR of H. illucens larvae was found to increase with temperature, leading to a higher food intake and faster growth rate. When reared on unbalanced diets, the larvae were found to experience metabolic costs and to consequently increase larval development time and decrease food intake. There was a significant temperature × diet interaction across the investigated parameters, indicating that larvae of H. illucens can prioritise energy allocation and adjust their metabolism in order to ensure further development. The nutrient composition reveals that larval nutrient profile can be enhanced through diets. Nonetheless, caution should be taken when exploring this procedure, as it could be associated with an extra metabolic cost.",
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author = "Anton Gligorescu and S{\o}ren Toft and Henrik Hauggaard-Nielsen and Axelsen, {J{\o}rgen Aagaard} and Nielsen, {S{\o}ren Achim}",
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Development, metabolism and nutrient composition of black soldier fly larvae (Hermetia illucens; Diptera: Stratiomydiae) in relation to temerature and diet. / Gligorescu, Anton; Toft, Søren; Hauggaard-Nielsen, Henrik; Axelsen, Jørgen Aagaard; Nielsen, Søren Achim.

I: Journal of Insects as Food and Feed, Bind 4, Nr. 2, 2018, s. 123-133.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Development, metabolism and nutrient composition of black soldier fly larvae (Hermetia illucens; Diptera: Stratiomydiae) in relation to temerature and diet

AU - Gligorescu, Anton

AU - Toft, Søren

AU - Hauggaard-Nielsen, Henrik

AU - Axelsen, Jørgen Aagaard

AU - Nielsen, Søren Achim

PY - 2018

Y1 - 2018

N2 - Bio-conversion of different organic waste streams in Hermetia illucens larval biomass suitable for animal feed is a promising sustainable solution across different sectors. However, environmental factors can affect the allocation of energy to fitness, survival and growth of insects in complex ways and can therefore impact the optimal functionality of bio-conversion systems. This study investigated the influence of temperature and diet quality differences on the metabolic rate (MR), development, growth, food intake, and body nutrient composition of H. illucens larvae. The fifth instar larvae were reared on three artificial diets (unbalanced diets: Protein and Carbohydrate, and control diet: Gainesville) and exposed to two constant temperatures (20 and 27 °C), until they reached the prepupa stage. The MR was measured in the sixth instar larvae and the body nutrient composition was measured in the prepupa larvae. The MR of H. illucens larvae was found to increase with temperature, leading to a higher food intake and faster growth rate. When reared on unbalanced diets, the larvae were found to experience metabolic costs and to consequently increase larval development time and decrease food intake. There was a significant temperature × diet interaction across the investigated parameters, indicating that larvae of H. illucens can prioritise energy allocation and adjust their metabolism in order to ensure further development. The nutrient composition reveals that larval nutrient profile can be enhanced through diets. Nonetheless, caution should be taken when exploring this procedure, as it could be associated with an extra metabolic cost.

AB - Bio-conversion of different organic waste streams in Hermetia illucens larval biomass suitable for animal feed is a promising sustainable solution across different sectors. However, environmental factors can affect the allocation of energy to fitness, survival and growth of insects in complex ways and can therefore impact the optimal functionality of bio-conversion systems. This study investigated the influence of temperature and diet quality differences on the metabolic rate (MR), development, growth, food intake, and body nutrient composition of H. illucens larvae. The fifth instar larvae were reared on three artificial diets (unbalanced diets: Protein and Carbohydrate, and control diet: Gainesville) and exposed to two constant temperatures (20 and 27 °C), until they reached the prepupa stage. The MR was measured in the sixth instar larvae and the body nutrient composition was measured in the prepupa larvae. The MR of H. illucens larvae was found to increase with temperature, leading to a higher food intake and faster growth rate. When reared on unbalanced diets, the larvae were found to experience metabolic costs and to consequently increase larval development time and decrease food intake. There was a significant temperature × diet interaction across the investigated parameters, indicating that larvae of H. illucens can prioritise energy allocation and adjust their metabolism in order to ensure further development. The nutrient composition reveals that larval nutrient profile can be enhanced through diets. Nonetheless, caution should be taken when exploring this procedure, as it could be associated with an extra metabolic cost.

KW - metabolic rate

KW - growth

KW - life history traits

KW - food intake

KW - protein and lipid concentrations

KW - efficiency of conversion of digested-feed

U2 - 10.3920/JIFF2017.0080

DO - 10.3920/JIFF2017.0080

M3 - Journal article

VL - 4

SP - 123

EP - 133

JO - Journal of Insects as Food and Feed

JF - Journal of Insects as Food and Feed

SN - 2352-4588

IS - 2

ER -