Details
| Original language | English |
|---|---|
| Pages (from-to) | 1027-1036 |
| Number of pages | 10 |
| Journal | Journal of Insects as Food and Feed |
| Volume | 9 |
| Issue number | 8 |
| Early online date | 17 Mar 2023 |
| Publication status | Published - 2023 |
Abstract
Black soldier fly larvae (BSFL) could play an important role as a high-quality source of protein, lipid, and other nutrients not only for animal feed but also for human consumption. However, feeding material costs for the larvae strongly influence the economic feasibility of the feed source. Therefore, the performance of several side streams originating from food production, which are legally permitted in European Union as feed grade substrates, were tested as feed in rearing BSFL. The substrates differed in their composition with respect to macronutrients, like proteins and lipids, and minor nutrients, like minerals. A commercial chicken feed substrate was used as a control, and it was replaced stepwise by the investigated substrate. The effect of the replacement on gained larval weight, survival rate, and feed conversion ratio was determined. Data were used to develop a model to predict larval weight based on the substrate contents of crude lipid and crude protein. The lipid content distinctly influenced the larval growth enabling a maximum weight gain at moderate lipid contents, whereas a very sharp decrease in larval weight gain was found for lower lipid contents in the substrate. On the other hand, influence of protein content on weight gain was linear with higher weights at higher protein contents. For the substrates included, a direct influence of the content of digestible carbohydrates on weight was not found demonstrating that this component was not the limiting growth factor in our study.
Keywords
- Hermetia Illucens, bioconversion, feed conversion rate (FCR), modelling, prediction of larval mass, rearing
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Food Science
- Agricultural and Biological Sciences(all)
- Insect Science
Sustainable Development Goals
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In: Journal of Insects as Food and Feed, Vol. 9, No. 8, 2023, p. 1027-1036.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Relationship between substrate composition and larval weight
T2 - a simple growth model for black soldier fly larvae
AU - Kieβling, Martina
AU - Franke, Knut
AU - Heinz, V.
AU - Aganovic, K.
N1 - Funding Information: This project is supported by the German Federation of Industrial Research Associations (AiF) within the program for promoting the Industrial Collective Research (IGF) of the Federal Ministry of Economic Affairs and Climate Action (BMWK), based on a resolution of the German Parliament.
PY - 2023
Y1 - 2023
N2 - Black soldier fly larvae (BSFL) could play an important role as a high-quality source of protein, lipid, and other nutrients not only for animal feed but also for human consumption. However, feeding material costs for the larvae strongly influence the economic feasibility of the feed source. Therefore, the performance of several side streams originating from food production, which are legally permitted in European Union as feed grade substrates, were tested as feed in rearing BSFL. The substrates differed in their composition with respect to macronutrients, like proteins and lipids, and minor nutrients, like minerals. A commercial chicken feed substrate was used as a control, and it was replaced stepwise by the investigated substrate. The effect of the replacement on gained larval weight, survival rate, and feed conversion ratio was determined. Data were used to develop a model to predict larval weight based on the substrate contents of crude lipid and crude protein. The lipid content distinctly influenced the larval growth enabling a maximum weight gain at moderate lipid contents, whereas a very sharp decrease in larval weight gain was found for lower lipid contents in the substrate. On the other hand, influence of protein content on weight gain was linear with higher weights at higher protein contents. For the substrates included, a direct influence of the content of digestible carbohydrates on weight was not found demonstrating that this component was not the limiting growth factor in our study.
AB - Black soldier fly larvae (BSFL) could play an important role as a high-quality source of protein, lipid, and other nutrients not only for animal feed but also for human consumption. However, feeding material costs for the larvae strongly influence the economic feasibility of the feed source. Therefore, the performance of several side streams originating from food production, which are legally permitted in European Union as feed grade substrates, were tested as feed in rearing BSFL. The substrates differed in their composition with respect to macronutrients, like proteins and lipids, and minor nutrients, like minerals. A commercial chicken feed substrate was used as a control, and it was replaced stepwise by the investigated substrate. The effect of the replacement on gained larval weight, survival rate, and feed conversion ratio was determined. Data were used to develop a model to predict larval weight based on the substrate contents of crude lipid and crude protein. The lipid content distinctly influenced the larval growth enabling a maximum weight gain at moderate lipid contents, whereas a very sharp decrease in larval weight gain was found for lower lipid contents in the substrate. On the other hand, influence of protein content on weight gain was linear with higher weights at higher protein contents. For the substrates included, a direct influence of the content of digestible carbohydrates on weight was not found demonstrating that this component was not the limiting growth factor in our study.
KW - Hermetia Illucens
KW - bioconversion
KW - feed conversion rate (FCR)
KW - modelling
KW - prediction of larval mass
KW - rearing
UR - http://www.scopus.com/inward/record.url?scp=85165164030&partnerID=8YFLogxK
U2 - 10.3920/JIFF2022.0096
DO - 10.3920/JIFF2022.0096
M3 - Article
VL - 9
SP - 1027
EP - 1036
JO - Journal of Insects as Food and Feed
JF - Journal of Insects as Food and Feed
IS - 8
ER -