• Korean journal of applied entomology
• /
• v.12 no.1
• /
• pp.29-32
• /
• 1973

This experiment has been carried out to establish the most effective rearing method of rice stemborer, Chilo suppressalis (Walker) on artificial diets under the aseptic condition. The results obtained were summarized as follows: 1. Semi·synthetic diet was giving better results in the weight of matured larvae (96.4mg), emerging rate$(96.7\%)$ and number of egg masses (2.6) than other diets studied. 2. Number of egg masses and hatching rate were significantly increased on the semi-synthetic diet and chemically defned diet, and it may be due to the choline chloride in the diets, 3. Rice seedling was used as a convenient food material. However, it requires more labours and causes more damages of larvae in replacement of fresh seedlings. 4. A different result in larval weight and pupation rate was observed between simplified diet no. 1 and diet added with chlorella. 5. Simplified diet resulted in low hatchability in the second generation, which may be due to the mulnutrition of the diet for adults. 6. The pupation rate was significantly decreased by infection of microorganisms on matured larvae.

• Proceedings of the Korean Society of Applied Entomolohy Conference
• /
• 2000.10a
• /
• pp.52-52
• /
• 2000

• Proceedings of the Korean Society of Applied Entomolohy Conference
• /
• 2003.10a
• /
• pp.68-68
• /
• 2003

• Korean journal of applied entomology
• /
• v.29 no.3
• /
• pp.190-193
• /
• 1990

To establish the successive rearing method of the perilla leaf pyralid, Prausta panopealis Walker, experiments were carried out wiht three diets based on a JAMSI-type artificial die for silkworm. On the SS4 diet containing 40% of perilla leaf powder the pupal and adult yields were higher than those on th fresh green perilla leaves.

• Journal of Life Science
• /
• v.25 no.8
• /
• pp.942-946
• /
• 2015

The Korean rhinoceros beetle (Allomyrina dichotoma) is popular as a pet and as a food ingredient, and it is commercially distributed in Korea. It is also traditionally regarded as a medicine for liver-related diseases. Recently, the Oryctes rhinoceros nudivirus was introduced from Southeast Asia. This virus is reported as a disease factor for A. dichotoma in mass-rearing facilities, and economic losses due to this viral infection have been increasing in Korea since the 2010s. In this study, we observed serious structural changes in the fat body and the intestine of virus-infected beetles. We report five genes that are up-regulated by the viral infection in the intestine: BTF3H4-like (transcription factor BTF3 homolog 4-like), SPS-like (serine proteinase stubble-like), COPB1 (coatomer protein complex, subunit beta 1), T-CP (T-complex 1 subunit gamma), and HSP70 HSP70 (heat shock protein 70). The results may provide a clue for the early diagnosis and disease-treatment that occurs in mass-rearing facilities. The improvement of stable productivity will increase the farmers’ income, and quality control of beetle-breeding will help industries to utilize this beetle as a promising food ingredient.

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2001.10a
• /
• pp.281-282
• /
• 2001

미세조류의 배양은 천해양식 생물의 종묘생산 시 먹이생물로서 가장 중요한 요인이 된다. 종묘생산은 친어(brood stock)의 관리와 산란된 난에서 부화된 자ㆍ치어의 사육으로 구분할수 있다. 이때 자ㆍ치어 사육의 근본적인 과제는 적합한 먹이생물의 확보이며 이는 곧 미세조류의 대량배양이라 할 수 있다. 먹이생물이 확보되지 못한 생태에서는 자ㆍ치어 사육은 불가능하므로 천해양식산업에서 미세조류의 배양은 가장 중요한 근본과제이다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2001.05a
• /
• pp.538-539
• /
• 2001

자주복(Takifugu rubripes)은 높은 부가가치의 양식품종인 어류이나 이빨이 날카로워 그물을 절단하거나 서로 깨물어 상처를 입히고, 사육시에 공식현상이 타 어종에 비해 심하기 때문에 치어사육 및 양성시 2∼3회에 걸쳐 이빨을 절단하여 사육하는 양식이 까다로운 종이다. 자주복 양성 중에 스쿠티카섬모충(scuticociliates)의 감염에 대한 피해가 확인되었으며, 최근에 들어 양성중인 다른 해산어류에서도 스쿠티카섬모충의 감염이 대량폐사 원인으로 되어 있어 이들 섬모충에 관한 연구가 절실히 필요한 시점이다. (중략)

• The Bimonthly Magazine for Agrochemicals and Plant Protection
• /
• v.9 no.1
• /
• pp.32-37
• /
• 1988

• Agrochemical news magazine
• /
• v.17 no.1 s.130
• /
• pp.62-65
• /
• 1996

• Korean journal of applied entomology
• /
• v.58 no.1
• /
• pp.69-76
• /
• 2019

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 $20^{\circ}C$. The hatching period was shortest at $35^{\circ}C$ 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 $25^{\circ}C$, which shows 1,710 eggs after reading for 30 days.