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Hermetia illucens meal as fish meal replacement for rainbow trout on farm

Stadtlander, Timo; Stamer, Andreas; Buser, Andrea; Wohlfahrt, Jens; Leiber, Florian and Sandrock, Christoph (2017) Hermetia illucens meal as fish meal replacement for rainbow trout on farm. Journal of Insects as Food and Feed, 3 (3), pp. 165-175.

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Online at: http://www.wageningenacademic.com/doi/abs/10.3920/JIFF2016.0056

Summary

In a 7-week on-farm feeding trial rainbow trout(Oncorhynchus mykiss) were provided with a diet containing 28% mechanically de-fatted insect meal prepared from larvae of the black soldier fly, Hermetia illucens (HIM) and compared to a control that received a certified organic and fishmeal based diet. In the test diet insect meal replaced almost 50% of the fishmeal. The whole experiment was conducted under practical conditions on an organically certified rainbow trout farm in Switzerland. Fish of initially 66.5±2.3 g body weight were grown to 125±4.5 g and assessed for their growth performance, as well as analysed for their proximate composition, feed conversion ratio, fatty acid contents and organoleptic properties. Improved lipid utilisation and decreased protein utilisation were observed in fish fed the HIM diet. Furthermore, in a controlled degustation no differences except a slightly darker coloration of fish fed HIM were observed. The experiment demonstrated that substantial replacement of fishmeal by insect meal is possible without compromising growth, feed conversion and product quality. However, the decreased protein utilisation efficiency in HIM fed fish might lower production efficiency when applied over a whole production cycle and not only over 7 weeks.


EPrint Type:Journal paper
Keywords:Aquaculture; insect protein; black soldier fly; feed; food quality
Agrovoc keywords:
LanguageValueURI
EnglishAquacultureUNSPECIFIED
EnglishinsectsUNSPECIFIED
Englishprotein feedUNSPECIFIED
EnglishefficiencyUNSPECIFIED
Subjects: Animal husbandry > Feeding and growth
Animal husbandry > Production systems > Aquaculture
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Animal Husbandry and Breeding
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland
Deposited By: Forschungsinstitut für biologischen Landbau, FiBL
ID Code:32138
Deposited On:25 Sep 2017 16:14
Last Modified:25 Sep 2017 16:14
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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