Mass Rearing Conditions for the Production of Gryllus bimaculatus De Geer (Orthoptera: Gryllidae)
2019
Kim, C.H., Osang K-insect, Yesan, Republic of Korea | Park, S.Y., Osang K-insect, Yesan, Republic of Korea | Lee, Y.C., RnD Center NaturTech, Jincheon, Republic of Korea | Kim, J.H., Andong National University, Andong, Republic of Korea | Byun, B.K., Hannam University, Daejeon, Republic of Korea
This study was evaluated to increase the production efficiency of Gryllus bimaculatus De Geer, which are recently increasing attention as industrial insects in Korea. In this study, the hatching rate and larval period were investigated along with temperature and humidity, as well as the survival rate and ovipositional temperatures along with rearing density. The optimum relative humidity for hatching was highest at 90%, which shows the hatching rate of 90%. The highest hatching rate was 98.3% at 20°C. The hatching period was shortest at 35°C incubation, which shows 7.1 days in average. The survival rate at 3,000-20,000 individuals in the breeding container was 34-18% after rearing for 35 days. In the effect test of feeding vegetables, the survival rate was 1.8 times and the biomass weight 2.5 times higher than that of normal individuals respectively. The number of laying eggs by temperature was highest at 25°C, which shows 1,710 eggs after reading for 30 days.
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