Investigation of the usefulness of two-spotted cricket (Gryllus bimaculatus) feed using two-spotted cricket (Gryllus bimaculatus) powder to replace fishmeal

IF 4.7 3区农林科学 Q1 ENTOMOLOGY

Journal of Insects as Food and Feed Pub Date : 2023-11-27 DOI:10.1163/23524588-20230177

D. Akiyama, T. Kaewplik, Y. Sasaki

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引用次数: 0

Abstract

Crickets are being reevaluated as food and livestock feed due to their high nutritional value and low environmental impact during production, as food waste can be used as feed. On the other hand, current cricket production uses feed used in aquaculture and poultry farming, and these feeds contain animal proteins such as fish meal and chicken meal. This is simply converting other animal proteins into insect proteins. Therefore, this study aimed to test whether two-spotted cricket powder can be used as a substitute for fishmeal in diets for Gryllus bimaculatus production. Cricket weight, feed efficiency, and number of crickets were evaluated by feeding rice bran: cricket powder = 85:15 and rice bran: fish meal = 85:15, respectively, referring to the feed mix ratio used by cricket producers. Results showed no statistically significant differences between the two experiments in cricket weight and feed conversion ratio. When data were obtained separately for each growth phase, cricket weight was found to be highest in the fourth post-hatching week for the diet with cricket powder and then decreased (initial input: 1 g; 28 days: 89.45 ± 22.19 g; 35 days: 49.47 ± 14.11 g). Feed conversion efficiency was found to be higher in the second half of growth (1-7 days: 0.48; 23-28 days: 0.80). The use of insect powder as bait for crickets is a new proposal. In cricket production, adults with low reproductive capacity are packaged and sold as food or livestock feed, but by using insect powder as feed during cricket production, it is possible to reduce animal protein in the feed. In the future, we plan to investigate the usefulness of mass-produced insect powder as feed for crickets.

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用双斑蟋蟀粉替代鱼粉喂养双斑蟋蟀的实用性研究

蟋蟀营养价值高，在生产过程中对环境影响小，食物残渣可用作饲料，因此被重新评估为食品和牲畜饲料。另一方面，目前的蟋蟀生产使用水产养殖和家禽养殖中使用的饲料，这些饲料含有鱼粉和鸡粉等动物蛋白。这只是将其他动物蛋白转化为昆虫蛋白。因此，本研究的目的是测试二斑蟋蟀粉是否可用作蝼蛄生产日粮中鱼粉的替代品。参照蟋蟀生产者使用的饲料混合比例，分别饲喂米糠：蟋蟀粉=85:15和米糠：鱼粉=85:15，对蟋蟀体重、饲料效率和蟋蟀数量进行了评估。结果表明，两次实验在蟋蟀体重和饲料转化率方面没有明显的统计学差异。如果分别获得每个生长阶段的数据，发现蟋蟀体重在孵化后第四周最高，随后下降（初始投入：1 克；28 天：89.45 ± 22.19 克；35 天：49.47 ± 14.11 克）。饲料转化效率在生长后半期较高（1-7 天：0.48；23-28 天：0.80）。使用昆虫粉作为蟋蟀的诱饵是一项新的建议。在蟋蟀生产中，繁殖能力低的成虫被包装成食品或牲畜饲料出售，但在蟋蟀生产过程中使用昆虫粉作为饲料，可以减少饲料中的动物蛋白。今后，我们计划研究大规模生产的昆虫粉作为蟋蟀饲料的实用性。

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来源期刊

Journal of Insects as Food and Feed Agricultural and Biological Sciences-Insect Science

CiteScore

7.00

自引率

17.60%

发文量

133

期刊介绍： The Journal of Insects as Food and Feed covers edible insects from harvesting in the wild through to industrial scale production. It publishes contributions to understanding the ecology and biology of edible insects and the factors that determine their abundance, the importance of food insects in people’s livelihoods, the value of ethno-entomological knowledge, and the role of technology transfer to assist people to utilise traditional knowledge to improve the value of insect foods in their lives. The journal aims to cover the whole chain of insect collecting or rearing to marketing edible insect products, including the development of sustainable technology, such as automation processes at affordable costs, detection, identification and mitigating of microbial contaminants, development of protocols for quality control, processing methodologies and how they affect digestibility and nutritional composition of insects, and the potential of insects to transform low value organic wastes into high protein products. At the end of the edible insect food or feed chain, marketing issues, consumer acceptance, regulation and legislation pose new research challenges. Food safety and legislation are intimately related. Consumer attitude is strongly dependent on the perceived safety. Microbial safety, toxicity due to chemical contaminants, and allergies are important issues in safety of insects as food and feed. Innovative contributions that address the multitude of aspects relevant for the utilisation of insects in increasing food and feed quality, safety and security are welcomed.