• Title/Summary/Keyword: 향어

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Studies on the Thermostability of Myofibrillar Proteins from Fresh Water Fish and Sea Water Fish (담수어와 해수어의 근원섬유단백질의 열안정성에 관한 연구)

  • 신완철;송재철;최석영;홍상필
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.4
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    • pp.574-578
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    • 2001
  • Myofibrillar proteins were prepared from red muscle and white muscle of fresh water fish and sea water fish, and their thermostabilities and effect of temperature on the myofibrillar ATPase activities were compared. Differences in temperature dependency of myofibrillar ATPase activities were found between two species. Thermodynamic data for inactivation of myofibrillar proteins, such as D value, Z value, $\Delta$ $H^{{\neq}}$, $\Delta$ $G^{{\neq}}$ and $\Delta$ $S^{\neq}$ revealed that thermostabilities of myofibrillar proteins from fresh water fish were higher than those from sea water fish, and that myofibrillar proteins from red muscle were more heat labile than those from white muscle.

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Effects on Lethal Concentration 50%, Hematological Parameters and Plasma Components of Mirror carp, Cyprinus carpio nudus Exposed to Waterborne Nitrate (수인성 질산 급성 노출에 의한 향어, Cyprinus carpio nudus의 반수치사농도, 혈액학적 성상 및 혈장성분에 미치는 독성 영향)

  • Yun-A Ryu;Seul-Gi-Na-Ra Park;Jun-Hwan Kim
    • Journal of Marine Life Science
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    • v.8 no.2
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    • pp.150-159
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    • 2023
  • To determine the toxic effects of the mirror carp, Cyprinus carpio nudus on waterborne nitric acid exposure, they were exposed to waterborne nitric acid at 0, 4, 20, 100, 500, and 2,500 mg NO3-/L for 96 h. The semi-lethal concentration (LC50) of the scented fish by 96 hours of acute exposure to nitric acid was 1,433.54 mg NO3-/L. The physiological changes of waterborne nitric acid exposure on mirror carp were evaluated through hematologic properties, and RBC count showed a significantly decreased (p < 0.05). The change in the ion control ability of the mirror carp according to exposure to waterborne nitric acid was evaluated through the plasma inorganic component, and calcium and magnesium were significantly decreased (p < 0.05) in the plasma inorganic component. The health and stress status of the mirror carp due to exposure to waterborne nitric acid were evaluated through plasma organic ingredients, and the plasma organic component glucose showed a significantly increase (p < 0.05). Changes in liver damage and enzyme activity due to waterborne nitric acid exposure were evaluated through plasma enzyme components, the enzymatic activities of plasma AST, ALT, and ALP were significantly decreased (p < 0.05) in high levels of waterborne nitric acid exposure. The results of the present study suggest that waterborne nitric acid exposure to C. carpio nudus can toxicly affect survival, hematologic properties, and plasma components.

A Record of Diplozoon nipponicum Goto, 1891 Found from Cyprinus carpio nudus in Korea (한국한 향어에 있어서의 Diplozoon nipponicum Goto, 1891)

  • 이재구
    • Parasites, Hosts and Diseases
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    • v.23 no.2
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    • pp.331-333
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    • 1985
  • 호림수산 소양호 가두리 양식장에서 사육하고 있는 12개월령의 향어(이스라엘잉어)로 부터 얻은 103개체의 충체를 상세하게 검토한 바 X자상 충체, 계측치, 특히 1쌍의 정착체의 존재 등의 특징으로 미루어 보아 Diplozoon nipponicum Goto, 1891이라고 동정한다. 이 단생목 흡충은 저자가 우리나라에서 처음으로 발견하였으며, 새로운 분포지역으로서 한국을 추가 보고한다.

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잉어 및 향어(Cyprinus carpio)의 장포자충증예에 대한 병리조직학적 관찰

  • 최희정;조병열;강형길;박정희;이월라;이무근;허민도
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.05a
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    • pp.526-527
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    • 2001
  • 1999년 8월경, 경상남도 양산석 한 양식장 육상수조에서 사육되고 있는 잉어와 향어(Cyprinus carpio)에서 장포자충증이 발생하여 일주일 만에 약 10%의 폐사가 발생하였다. 본 증에 의한 피해 규모가 크지는 않지만 아직까지 확실한 제어 대책이 아직 없는 실정이다. 본 질병의 숙주에 대한 영향을 평가하기 위하여 감염 예를 대상으로 병리조직학적 관찰을 실시한 결과를 보고하고 숙주에 미칠 수 영향에 대하여 고찰하였다. (중략)

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Effect of Gluathione on the Histopathological Changes Caused by Oxidized Diets in the Carp, Cyprinus carpio (산화(酸化)된 사료(飼料)에 의(依)한 잉어의 병리조직학적(病理組織學的) 증상(症狀)과 glutathione 첨가효과(添加效果))

  • Min, Eung-Shik;Chun, Seh-Kyu
    • Journal of fish pathology
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    • v.3 no.2
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    • pp.81-91
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    • 1990
  • Nutritional ceroidosis accompanied with histopathological changes such as myopathy and visceral ceroidosis, was experimentally induced by feeding the oxidized feed with the peroxide value of 98meq/kg, to common carp resulting in some motalities of carp. To see the effect of treacetment survivors of the above fish were orally administered by feeding diets containing daily doses of 3mg and 6mg of glutathione per kg fish for 10 days or 20 days. While control and 3mg dosage group retained viscerral ceroidosis and showed evidence myopathy histo pathologically, the fish treated with 6mg of glutathione for 20days showed obvious reduction of macrophages of ceroid in the viscera.

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