Article (Scientific journals)
Technical basis for the small-scale production of black soldier fly, Hermetia illucens (L. 1758), meal as fish feed in Benin
Gougbedji, Mahounan; Agbohessou, Pamphile; Lalèyè, Philippe A. et al.
2021In Journal of Agriculture and Food Research, 4
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Keywords :
Hermetia illucens; Insect breeding; Fish feeding; Polyunsaturated fatty acid; West Africa
Abstract :
[en] Promoting black soldier fly (BSF) rearing in Benin to replace fishmeal in fish diet could reduce fish production costs. This study aims to set up a breeding technique of BSF as a protein source. BSF reproduction has been carried out in sunlight. Two densities (8500 individuals/m3 and 10,500 individuals/m3) associated with 2 attractants (soybean and pineapple waste) were tested on imago egg-laying. A larvarium with a prepupae self-harvesting system was designed and its efficiency was evaluated by testing 3 densities of larval rearing (1 larva/g, 2 larva/g, 3 larva/g). Two diets, VGD (soybean meal þ euphorbia leaves and seeds þ colza oil) and FOD (soybean meal þ fish offal) were formulated to optimize polyunsaturated fatty acid profile of prepupae to meet nutritional requirements of tilapia. Best oviposition was obtained with 8500 individuals/m3 with pineapple waste and optimal larval load density was 2 larva/g. Prepupae fed with VGD accumulated C18:2n-6 (10.1%) which is essential for tilapia. Prepupae fed with FOD contained C20:5n-3 (2.20%), a fatty acid beneficial to humans. The lowest production cost of BSF meal was estimated at $1.84/Kg and was obtained with the FOD diet. BSF can easily be reared under local conditions throughout the year. Its nutritional qualities are very interesting to meet Nile tilapia requirements.
Research center :
Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liege
Laboratory of Hydrobiology and Aquaculture, Faculty of Agronomics Sciences, University of Abomey-Calavi
Disciplines :
Entomology & pest control
Author, co-author :
Gougbedji, Mahounan  ;  Université de Liège - ULiège > Terra
Agbohessou, Pamphile;  Université de Namur - UNamur > Faculté des Sciences
Lalèyè, Philippe A.;  Université d'Abomey-Calavi > Faculté des Sciences Agronomiques > Laboratoire d'Hydrobiologie et d'Aquaculture
Francis, Frédéric  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Caparros Megido, Rudy  ;  Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs
Language :
English
Title :
Technical basis for the small-scale production of black soldier fly, Hermetia illucens (L. 1758), meal as fish feed in Benin
Publication date :
May 2021
Journal title :
Journal of Agriculture and Food Research
eISSN :
2666-1543
Publisher :
Elsevier, Amsterdam, Netherlands
Volume :
4
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Optimisation de la filière tilapia par l'amélioration génétique et les stratégies alimentaires innovantes au Bénin
Funders :
Académie de Recherche et d'Enseignement Supérieur (Belgique). Coopération au Développement - ARES. CCD
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