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Growth, survival and development of house crickets (Acheta domesticus) fed flowering plants

Vaga, Merko and Berggren, Åsa and Jansson, Anna (2021). Growth, survival and development of house crickets (Acheta domesticus) fed flowering plants. Journal of insects as food and feed. 7 , 151 - 161
[Research article]

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Abstract

House crickets (Acheta domesticus) are increasingly being used as food. This has the potential for a more efficient food production that also may benefit agroecosystems. As the first study to compare feeds based on European wild flowering plants as feed for house crickets we examined five common plants known to support biodiversity of wild insects (white clover (Trifolium repens), white nettle (Lamium album), common nettle (Urtica dioica), rough comfrey (Symphytum asperum) and common gypsophila (Gypsophila paniculata). These plants and a control diet were fed as dried and sole feeds ad libitum to one-day-old house crickets for 62 days in a climate-controlled laboratory. Cricket weight, mortality and feed intake were recorded every 7 days. An additional test examined crickets preferences for forages and the effect on maturation and weight, by providing a free choice of rapeseed and wheat meal and either an early- or late-cut red clover (Trifolium pratense) or white nettle for 62 days. Mortality of crickets fed common nettle, rough comfrey and common gypsophila exceeded 80% in first 7 days, so these plants were removed from the trial after 14 days. Survival of crickets on white nettle and control feed was 59% after 28 days and average cricket weight was similar. By day 62, the weight of crickets fed white nettle and white clover was on average 32 mg, compared with 201 mg on control feed. In the free choice test, crickets consumed 15-30% red clover, 31-37% wheat meal and 39-64% rapeseed. Crickets with access to red clover showed a higher (P<0.001) proportion of adults (28%) compared with the control (5%). We conclude that white nettle has potential as feed for house crickets during the early growth stages, and that red clover supplementation increase cricket maturation. Using feeds including white nettle and red clover in cricket rearing additionally benefits to support wild biodiversity and lower feed costs.

Authors/Creators:Vaga, Merko and Berggren, Åsa and Jansson, Anna
Title:Growth, survival and development of house crickets (Acheta domesticus) fed flowering plants
Series Name/Journal:Journal of insects as food and feed
Year of publishing :2021
Volume:7
Page range:151 - 161
Number of Pages:11
ISSN:2352-4588
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-Share Alike 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science.
Keywords:insects, entomophagy, rearing, forages
URN:NBN:urn:nbn:se:slu:epsilon-p-109470
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109470
Additional ID:
Type of IDID
DOI10.3920/JIFF2020.0048
ID Code:23124
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(VH) > Dept. of Anatomy, Physiology and Biochemistry
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:09 Apr 2021 12:23
Metadata Last Modified:09 Apr 2021 12:31

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