• Title/Summary/Keyword: 육상양식

Search Result 116, Processing Time 0.028 seconds

Comparison of nutritional characteristics between wild and cultured juvenile black rockfish, Sebastes schlegeli (자연산 및 양식산 조피볼락 치어의 영양학적 특성 비교)

  • LEE HaeYoung;PARK Min Woo;JRON Im Gi
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.33 no.2
    • /
    • pp.137-142
    • /
    • 2000
  • Cultured juvenile black rockfish, Sebastes schiegeli as a seed for sen ranching project were compared with the similar size of wild fish. Wild fish were analyzed and compared with cultured fish in body indices, and moisture, crude protein, lipid, ash, many kinds of amino acids and various minerals in the whole-body of juvenile rockfish from three different populations. There were significant (P<0.05) differences in the moisture, crude lipid, and ash in the whole-body of fish among three different populations; the moisture content of wild fish was higher than that of both cultured fish. The lipid content in wild and tank cultured fish was lowest and highest, respectively; The lipid content of fish cultured in embanked system was intermediate values. The condition factor (CE), hepatosomatic index (HSI), and intraperitoneal fat (IPE) of fish cultured in tank system and embanked system were significantly (P<0.05) higher than those of wild fish. But fish cultured in tank system produced similar intestinosomatic index (ISI) and muscle ratio (MR) values as the wild fish. There were significant differences in asparatic acid, glutamic acid, isoleucine, leucine, lysine, phenylalanine, threonine, valine of whole-body fish cultured by different methods; the wild fish was highest in these amino acids, followed by fish cultured in embanked system and then fish cultured in tank system. There were also significant differences in Ca, P, Mg, Mn, Zn of whole-body fish cultured by different methods: wild fish and fish cultured in tank system produced highest in Ca, P, Mg, Zn and lowest in Mn, respectively. There were significant differences in moisture, crude lipid, ash, many kinds of amino acids, several minerals, CE, HSI, UE, and ISI among the three juvenile populations; whole-body of wild fish showed higher in moisture, ash, asparatic acid, glutamic acid, isoleucine, leucine, Iysine, phenylalanine, threonine, valine, Ca, P, Mg, and Zn than fish cultured in embanked system, while they showed lower in the rest of the nutritious parameters studied.

  • PDF

시스템 생태학적 접근법에 의한 넙치생산의 지속성 평가 - 넙치 육상양식산업에 대한 예측 -

  • 김남국;김우석;김진이;이석모
    • Proceedings of the Korean Society of Fisheries Technology Conference
    • /
    • 2000.10a
    • /
    • pp.205-206
    • /
    • 2000
  • 흔히 '광어'라고 일컫는 넙치는 우리나라의 해산어류 중 가장 경제성이 높은 어류중의 하나이다. 우리나라의 넙치생산은 초기에는 주로 자연산의 어획에 의존하였으나 최근에는 양식기술의 발달로 생산의 대부분이 육상 양식에 의해 이루어지고 있다. 특히 인공종묘생산이 가능하고 먹이효율이 높아 성장속도가 빠르며 소비수요마저 커서 각광받는 산업으로 그 보급이 전국적으로 확대되고 있다. (중략)

  • PDF

참전복의 산소소비와 암모니아 배설에 미치는 수온의 영향

  • 전민지;문협수책;장영진
    • Proceedings of the Korean Society of Fisheries Technology Conference
    • /
    • 2001.10a
    • /
    • pp.293-294
    • /
    • 2001
  • 전복류는 옛날부터 고급수산품으로서 가치가 높고, 근년에 와서는 경제성장과 함께 그 수요가 날로 증가되는 추세로 양식 대상종으로 전망이 밝다(변 등, 1984, 김, 1997). 전복양식은 최근 연안환경의 오염으로 인한 양식장 적지의 제한 등의 여러 가지 문제점의 제기로 종묘생산과 양성에 이르기까지 육상 수조에서 완전양식이 시도되고 있는 추세이다. 육상수조식 양식은 전 사육과정을 인위적으로 관리 하면서 사육하기 때문에 생존율 및 성장효과 면에서는 다른 양식 방법보다 유리하다는 이점을 가지고 있지만, 전복이 한정된 공간에서 대량으로 사육됨에 따라 여러 가지 질병과 수질악화, 여름철 고수온기 때의 수온의 급상승이나 적조 생물 및 이상수괴에 의한 치패의 성장저하 대량 폐사 등의 문제점을 가지고 있다. (중략)

  • PDF

Recycling Marine Fish Farm Effluent by Microorganisms (유용미생물을 이용한 육상수조식 양식장 배출물의 재활용)

  • 문상욱;이준백;이영돈;김세재;강봉조;고유봉
    • Journal of Aquaculture
    • /
    • v.15 no.4
    • /
    • pp.261-266
    • /
    • 2002
  • The effluent sediment from the land-based seawater fish farms of Jeju consists of proteins, fats, ash and moisture. An evaluation of the effluent sediment as substrate for growth of phototrophic or lactic acid bacteria revealed that the sediment supported the growth of phototrophic bacteria but could support lactic acid bacteria only on supplementation with sugar. The possibility of using phototrophic bacteria for recycling the land-based seawater fish farm effluent is shown.

제주산 양식넙치(Paralichthy olivaceus)로부터 분리된 $\beta$-용혈성 연쇄구균($\beta$-Streptococcus sp.)의 특성

  • Heo, Moon-Soo;Song, Chun-Bok;Lee, Je-Hee;Yeo, In-Kyu;Jeon, Yu-Jin;Lee, Jung-Jae;Jung, Sang-Chu;lLee, Ki-Wan;No, Seom;Choi, Kwang-Sik;Lee, Young-Don
    • Proceedings of the Korean Society of Fisheries Technology Conference
    • /
    • 2001.05a
    • /
    • pp.317-318
    • /
    • 2001
  • 제주도의 넙치양식은 1986년부터 종묘생산기술개발을 계기로 육상양식이 시작되어 1997년 12월 말에는 5,500여톤을 생산하기에 이르렀다. 넙치양식 업체의 수도 최근에 와서 급격히 증가하고 있으며 시설규모도 소규모에서 대규모로 전환하는 경향이다. 또한 사육방법도 고밀도로 사육하는 경우가 많고 부주의한 사육관리 등으로 각종 질병이 발생되고 있다(Lee and Ha, 1991). (중략)

  • PDF

Domestic Smart Aqua-farming Technology (국내 스마트양식 기술 동향)

  • Jeong, H.;Heo, T.W.;Lee, I.W.
    • Electronics and Telecommunications Trends
    • /
    • v.36 no.5
    • /
    • pp.62-73
    • /
    • 2021
  • A stable protein source is required to support the rapidly increasing global population, and fishery products are a particularly important part of the required protein supply. However, due to continued overfishing, fishery resources are depleted, and the number of fish caught by fishing boats has stagnated. Consequently, the aquaculture industry is becoming increasingly important. Internationally, smart aquaculture technology that minimizes labor and environmental pollution has been established through technological developments supported by large investments in automation and water treatment technology over the last several decades. In the case of Korea, the aquaculture industry has not yet emerged as a labor-intensive primary industry. However, in recent years various attempts have been made to apply ICT technology to aquaculture to overcome these problems. In this study, domestic and foreign technologies and patent trends for smart aquaculture are analyzed. In addition, the current status of the smart aquaculture cluster business that the Ministry of Oceans and Fisheries has been promoting since 2019 to utilize ICT technology in aquaculture is introduced.

Feeding Habits and Growth of the Sea Urchin, Strongylocentrotus pulcherrimus (A. Agassiz) Reared in the Laboratory (실험실에서 사육한 말똥성게 Strongylocentrotus pulcherrimus (A. Agassiz)의 식성과 성장)

  • HUR Sung Bum
    • Journal of Aquaculture
    • /
    • v.1 no.2
    • /
    • pp.121-133
    • /
    • 1988
  • Strongylocentrotus pulcherrimus is one of the very important fishery stock in this country since its high demand for raw gonad. Although the demand has been continuously increasing, the natural stock of this species seems to be decreasing. Since fresh macroalgae are not always available, the substitution of terrestrial vegetables for algae as a principal food was examined for the intensive indoor culture of the sea urchin. The results from the studies on selective and non-selective feeding habits and nutritional efficiencies using 13 food stuffs (6 macroalgae, 5 vegetables and 2 animal products) indicate that algae can be substituted with vegetables in sea urchin culture. Although the growth of body weight was the highest when sea urchins were fed Undaria Pinnatifida, the gonad index of the sea urchins fed on spinach, radish leaf and lettuce was higher than that of this brown alga. Considering the different food efficiencies of body and gonad growth, spinach and radish leaf will be adequate during gonad growth season, while lettuce and Chinese cabbage will be suitable for test growth season. In particular, radish leaf, which is usually not eaten by humans, could be highly beneficial and very economical in the sea urchin culture.

  • PDF