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Effect of Chlorella Supplementation on Survival and Larval Growth of the Edible Beetles, Protaetia brevitarsis and Allomyrina dichotoma

Journal of Life Science 2019년 29권 9호 p.996 ~ 1001
 ( Song Myung-Ha ) - Rural Development Association National Institute of Agricultural Sciences Industrial Insect Division

 ( Park Kwan-Ho ) - Rural Development Association National Institute of Agricultural Sciences Industrial Insect Division
 ( Kim Eun-Sun ) - Rural Development Association National Institute of Agricultural Sciences Industrial Insect Division
 ( Kim Yong-Soon ) - Rural Development Association National Institute of Agricultural Sciences Industrial Insect Division

Abstract


Edible insects are reported to be rich in protein, minerals and vitamins, and much attention has been paid to them as a future food source. In Korea, they were massively reared and sold. In order to enhance the market value of edible insects for industrialized mass production, it is important to develop the safe and nutritious feed sources for rearing them are needed. In this study, a chlorella-free control feed (Exp1) and six experimental feeds supplemented with 0.5~2.0% liquid or powder types of chlorella were formulated. Protaetia brevitarsis and Allomyrina dichotoma, registered as food ingredients in Korea, were fed with the designed feeds and parameters of growth including larval survivorship, larval body weight, and larval period were analyzed. When chlorella added, larval survivorship was increased 2~13%(p>0.05) and 9~22%(p<0.05) in each beetle compared to the control. Interestingly, the larval period of chlorella powder-added groups was shortened by 24 days (Exp3, p<0.05) in P. brevitarsis and 19 days (Exp4, p<0.01) in A. dichotoma. Meanwhile, some parameters, crude protein, crude fiber, copper, zinc, potassium, magnesium, and phosphorous, in chlorella-added groups of P. brevitarsis were also higher than the control group. Therefore, chlorella could promote the larval growth performance of these two beetles and be used as a feed additive in rearing them.

키워드

Allomyrina dichotoma; chlorella; edible insect; growth; Protaetia brevitarsis
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