• Proceedings of the KSAR Conference
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• 2002.06a
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• pp.35-35
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• 2002

본 연구는 핵이식 기법을 이용하여 고능력 한우의 대량 생산기술을 개발하기 위하여 수행하였다. Donor cell 은 축산기술연구소 남원지소에서 사육, 검정하고 있는 축군에서 육량 육질 국내 100위 이내의 암소에서 귀세포를 채취하여 동결 및 계대배양하여 사용하였다. 도축장에서 채취한 난소에서 난자를 채취하여 22시간 성숙 배양한 후 난구세포를 제거하고, 극체가 존재하는 난자를 선별하여 recipient cytoplasm으로 사용하였다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.10a
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• pp.201-202
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• 2000

순환여과식 양식은 어류를 효과적으로 대량 생산할 수 있는 반면 어류의 배설물과 미섭취 사료 등에 의해서 암모니아, 아질산 및 유기질 고형 성분 등이 발생하여 사육중인 어류에 나쁜 영향을 야기하게 된다. 배설물과 미섭취 사료는 대부분 유기성 고형물로 어류의 아가미에 끼여 질병을 유발시키며 미생물에 의해 분해되면서 어류에 유해한 암모니아나 아질산으로 전환되어 어류에 유해하다. 그러므로 미생물에 의해 분해되기 전에 신속하고 효과적으로 제거하여야 한다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.454-454
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• 2000

우리나라 연안 가두리 양식장에서 많이 사육하고 있는 조피볼락, Sebasti schlegeli 아가미에 기생하는 단생흡충인 Microcotyle sebastis는 여름철 고수온기에 양식어류 대량으로 폐사시킬 수 있지만, 어떤 방법으로 어떠한 피해를 주는지에 대한 연구는 미미한 실정이다. 따라서 본 연구는 Microcotyle sebastis의 기생 방법과 병리조직학 관찰을 수행하였다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.290-291
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• 2000

우리나라의 넙치(Paralichthys olivaceus) 양식은 1980년대 들어 인공종묘생산 기술 개발된 이후 현재 양식기술의 보편화로 종묘생산부터 양성까지 완전 양식이 이루어지고 있고 대부분 대량양산 체제로 경영하고 있다. 넙치 사육에서 공급되는 사료는 생산원가를 상승시키는 주된 요인으로 작용 할 뿐만아니라 사료의 질에 따라 영양성의 다양한 질병 발생으로 양식어가에 많은 애로를 안겨주고 있다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.287-288
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• 2001

해양미세조류인 Isochrysis galbana는 그들의 우수한 영양적인 특성, 특히, 필수영양소 중 고도불포화지방산의 함량이 높아 어류뿐만 아니라 패류, 갑각류의 유생사육 시먹이로서 널리 사용되고 있다. 그러나 이들의 먹이로써 공급하기 위한 기존의 먹이생물 배양기술은 획일적 인 배지의 선택, 단순한 환경조건 (pH, 온도, 빛의 세기, 기체공급속도)등으로 인해 낮은 세포농도 밖에 키울 수가 없다. 이는 먹이확보를 위해 배양 공간을 그 만큼 넓게 차지하게 되며, 이로 인한노동력의 증가와 시설비의 증가는 결국 생산비의 증가를 초래한다. (중략)

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.303-304
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• 2001

털게, Erimacrus isenbeckii는 갑각류(Crustaces, Decapods)중에서 대형 단미류(Brachyura)로서 우리나라 영일만, 동해북부, 사할린, 오호츠크해, 알라스카연안에 분포하는 유용종으로 우리나라에서는 중요한 어업대상종으로 자원관리가 절실하게 요구되고 있는 실정이다. 최근에는 활해로서의 수요량이 급증하는 반면 자원량이 감소되어 공급량을 충당하기 어려운 실정이므로, 인공종묘생산에 의한 대량생산과 양식기술개발이 이루어져야한다. (중략)

• Korean journal of applied entomology
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• v.44 no.3 s.140
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• pp.189-197
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• 2005

Cellulose-digesting bacteria were isolated from hindgut of Allomyrina dichotoma (Coleoptera: Dynastidae). The bacterial isolates were identified as Yersinia sp. and Bacillus sp. The addition of the identified bacteria to diet increased growth rate of the cetoniid beetle, Protaetia brevitarsis senlensis (Coleoptera: Cetoniidae), probably by digesting cellulose nutrient contained in the oak tree sawdust diet. An additive of wheat flour at more than 10% to the sawdust diet significantly enhanced growth of P. brevitarsis senlensis. Trimmed branches of apple trees have been disposed in the apple farms and could be used for a diet component of the cetoniid beetle when the cellulose-digesting bacteria were mixed with the derived-sawdust. Resulting manure from mass rearing of P. brevitarsis senlensis contained high organic matters and trace amounts of toxic metals. When the manure were splayed on soil, it was effective as a natural compost and significantly stimulated lettuce growth. This research suggests a model technology to use cellulose-digesting bacteria to use for culturing grub, which results in natural recycles of trimmed branches in apple farms as grub diet, and to use grub manure as a natural compost.

• Korean journal of applied entomology
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• v.57 no.4
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• pp.373-379
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• 2018

This study investigated the developmental and ovipositional characteristics of Protaetia brevitarsis individuals that were fed with fermented mulberry sawdust. The developmental periods of larvae were 164.0, 73.3, and 64.8 days at 25, 28, and $30^{\circ}C$, respectively. The maximum larval weight was 2.94 g at $25^{\circ}C$, and the weight of larvae decreased as temperature increased. The average weight of female adults were 0.94, 0.51, and 0.54 g at 25, 28, and $30^{\circ}C$, respectively. The weight of male adults was higher than that of females. The addition of 10% or 30% wheat bran to the fermented mulberry sawdust increased larval weight. It was possible to sell larvae from 75 days after mass rearing, when the cumulative rate of larvae that were heavier than 2.5 g was approximately 75%. The average number of eggs per female was 83.2 at $25^{\circ}C$, and this was the highest in the 5th week. Most of the eggs (73%) were oviposited between 3 and 8 weeks after adults emergence.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.15 no.1
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• pp.47-51
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• 1982

Red tilapia fingerlings were tested for 45 days on the growth rate in a closed recirculating water system omitting filter bed and was compared with common carp fingerlings grown together in the same tank and also with red tilapia fingerlings grown in a well conditioned conventional pond. The tank water was kept in deepgreen colour by heavy phytoplankton bloom during the most of the experimental period and duckweeds, Lemna sp. and water hyacinth, Eichhornia crassipes were put to grow in the parts of the water system. Total ammonia level in the tank was mostly kept at about 5 to 7 ppm, with a fluctuation between 3.4 and 11.2 ppm. Average daily growth rate of the tilapia in the experimental tank was $6.5112\%$ without any mortality, compared to $3.617\%$ for common carp fingerlings involving some mortality in the same tank, and to $5.7712\%$ for the tilapia grown in the conventional pond. The feed used for the experiment was one prepared for the rearing of common carp, and the duckweed grown in parts of the water system was routinely collected and fed to the tilapia in the tank as supplementary diet probably satisfying unknown growth factors.

• Korean journal of applied entomology
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• v.12 no.1
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• pp.41-46
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• 1973

1) The optimum temperature for mass rearing of stable fly was $26^{\circ}C$ centigrade. Number of days required for stage of development at $26^{\circ}C$ were 6.8 days for larval stage, 5.3 days for pupla stage, 10.4 days for preovipositionla stage, and 30 days for adult stage respectively. 3) The pupation rate, emergence rate and sex ratio were $80.7\%,\;84.3\%$ and 1 : 1, respectively. 3) The average weight of pupae was 14.5mg, and the standard medium showed better result in larvae rearing than wheat bran medium. 4) The optimum number of eggs for inoculation on 125gr medium was approximately 310. 5) Optimum size of resting place was determined as $2inch^2/adult$ when it reared in a rectangular cage.