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한국어병학회지 update

Jouranl of Fish Pathology

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수록정보
수록범위 : 1권1호(1988)~32권1호(2019) |수록논문 수 : 769
한국어병학회지
32권1호(2019년 06월) 수록논문
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1Correlation of virus replication and spleen index in rock bream iridovirus infected rock bream Oplegnathus fasciatus

저자 : Myung-hwa Jung , Sung-ju Jung

발행기관 : 한국어병학회 간행물 : 한국어병학회지 32권 1호 발행 연도 : 2019 페이지 : pp. 1-8 (8 pages)

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Rock bream iridovirus (RBIV) is a member of the Megalocytivirus genus that causes severe mortality to rock bream (Oplegnathus fasciatus) with characteristic clinical signs of spleen enlargement. In this study, we assessed spleen size and RBIV copy number patterns in RBIV-infected rock bream to determine lethal and safe levels of virus copy number/spleen index that may define disease progress. We found that rock bream infected with RBIV (1.1 × 107 virus copy number/100 μl) and held at 29, 26, 23 or 20℃ exhibited significantly higher levels of spleen size compared to 17℃. In dead condition (100% mortality at 20~29℃), the spleen index (spleen weight / fish weight × 100) and virus copy number were 3.00~5.38 and 106~108/μl, respectively. Conversely, in survived condition (0% mortality at 17℃), spleen index and virus copy number was as low as not-infected control (0.34~1.22/100~101/μl, respectively). These findings suggest that spleen index can be an indicator of disease severity of RBIV disease.

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2The dietary effect of medicinal herbs extract and multiple probiotics mixture on the growth performance, innate immune response and antibacterial activity of nile tilapia Oreochromis niloticus

저자 : Yo-sep Hwang , Seok Jin Bang , Tae Yun Kang , Jae Hyeok Choi , Sang Mok Jung , In Sung Kang , Se Young Jeon , Kwan Ha Park , Sanghoon Choi

발행기관 : 한국어병학회 간행물 : 한국어병학회지 32권 1호 발행 연도 : 2019 페이지 : pp. 9-20 (12 pages)

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The study investigated the dietary effects of medicinal herbs extract and multiple probiotics mixture on the growth performance, innate immune response and antibacterial activity of nile tilapia Oreochromis niloticus. Tilapia were divided in four groups. The first is a fish group fed a basal diet added with 40% medicinal herbs extract (MHE). The second is a fish group fed a basal diet supplied with 2×108 CFU/g of 2 Bacillus sp, 2 Lactobacillus sp and 2 Yeast sp, respectively (PB). The third group was fed with a mixture of probiotics (2 Bacillus sp, 2 Lactobacillus sp and 2 Yeast sp) with the medicinal herbs extract added in basal diet (MHE+PB). The fourth group was fed only a basal diet (C). In a non-specific immune parameters analysis, respiratory burst activity, lysozyme activity, phagocytic activity (PA), alternative complement pathway activity (ACH50) and superoxide dismutase (SOD) activity were significantly (p<0.05) increased in the group MHE+PB compared to other groups. Both PB and MHE groups showed a significant (p<0.05) increase in respiratory burst activity, lysozyme activity compared to the control C group, whereas no significant differences were observed in PA, ACH50 and SOD activity compared to the control group. In challenging test, fish were administered with Edwardsiella tarda (E. tarda) on 30 days after feeding with each experimental diet and viable E. tarda cell reduction was checked over 21 days post injection. MHE+PB group showed a significantly (p< 0.05) reduced E. tarda cells compared to other groups. No significant antibacterial difference (p >0.05) was observed between PB and MHE only treated group. Compared to the control, a significant antibacterial difference (p< 0.05) appeared in PB but not in MHE (p >0.05). The results suggest that the probiotics and MHE mixture could be utilized as an alternative to antibiotics in the control of fish diseases caused by E. tarda.

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3항산화물질 N-acetylcysteine (NAC)이 메기에서 비특이적 면역지표인 화학발광 반응에 미치는 영향

저자 : 박관하 ( Kwan Ha Park ) , 이한나 ( Han-na Lee ) , 안재영 ( Jae-young An ) , 배준성 ( Jun Sung Bae ) , 이채원 ( Chae Won Lee ) , 양찬영 ( Chan Young Yang ) , 최상훈 ( Sang-hoon Choi )

발행기관 : 한국어병학회 간행물 : 한국어병학회지 32권 1호 발행 연도 : 2019 페이지 : pp. 21-28 (8 pages)

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It has been reported that various anti-oxidant substances stimulate non-specific immune responses in fishes. In this study it was examined whether N-acetylcysteine (NAC), a precusor for anti-oxidant glutathione (GSH) synthesis, can modulate non-specific immune function in Far Eastern catfish Silurus asotus. Immune functions were assessed using the respiratory burst activity monitored by chem-iluminescence (CL) responses in isolated leucocyte. NAC stimulated CL responses with doses of 10 or 100 mg/kg, but not with 1 mg/kg after 48 hr injection. It was observed with 10 mg/kg NAC that CL activity continued to elevate from 24 hr through 96 hr post-dosing, and returned to the near preinjection level by 10 days. To understand whether NAC can also activate CL activity in vitro, NAC was directly added to isolated catfish leucocytes. It was observed, however, that NAC can not stimulate CL at reasonable concentration ranges in vitro. As NAC is a precursor for the strong anti-oxidant glutathione (GSH), a putative immune stimulator, it was assessed whether GSH can also stimulate CL responses. Observed results show that GSH activated CL both in vivo and in vitro. The data obtained collectively support the proposition that NAC indirectly stimulates non-specific immune functions in catfish by enhancing GSH biosynthesis, but not by direct action of NAC. Such effects may have beneficial significance in aquaculture for practical utilization.

KCI후보

4한국 양식 넙치 폐사피해 모니터링

저자 : 심재동 ( Jae-dong Shim ) , 황성돈 ( Seong-don Hwang ) , 장수영 ( Soo-young Jang ) , 김태완 ( Tae-wan Kim ) , 정지민 ( Ji-min Jeong )

발행기관 : 한국어병학회 간행물 : 한국어병학회지 32권 1호 발행 연도 : 2019 페이지 : pp. 29-35 (7 pages)

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2015년부터 2017년까지 우리나라 넙치 양식장에서 발생하는 폐사피해를 표본조사를 통해 모니터링 하였다. 표본어가는 전국의 수산질병관리원과 지속적으로 거래하고 있으며 현장방문을 통해 설문이 가능한 양식어가 중 층화구조분석을 통해 선정 하였다. 수산질병관리사 조사요원의 직접적인 현장방문을 통한 설문 조사를 수행하여 객관적으로 양식현황 및 폐사 현황을 파악하였다. 조사기간 중 24.78%/2015년, 30.19%/2016년 그리고 21.59%/2017년의 누적 폐사율을 나타내었고, 감염성 질병에 의한 폐사는 스쿠티카증(2015-2017년 평균누적 폐사율: 56.7%)과 바이러스성출혈성 패혈증감염(추정)(2015-2017년 평균 누적 폐사율: 8.9%)에 의한 피해가 높은 것으로 나타났으며, 제주에서는 여윔증(2016-2017년 평균 누적 폐사율: 10.3%)에 의한 피해가 높게 나타났다.


A monitoring was performed to survey the mortalities that had occurred in the aquaculture farms of olive flounder (Paralichthys olivaceus) in South Korea from 2015 to 2017. The indirect inquiry for entire farms and the sample survey for selected farms were carried out. The aquatic organism disease inspectors, who have a national license for the diagnosis and prevention of aquatic organism diseases and a have close relationship with the farms, investigated the rates and causes of mortalities according to the standard manual. The mortality rate by sample survey of farms in 2015, 2016, and 2017 were 24.78% (Chunnam: 17.86%, Jeju: 28.69), 30.19% (Chunnam: 24.45%, Jeju: 32.65), and 21.59% (Chunnam: 10.57%, Jeju: 26.00%), respectively. The major cause of mortality was scuticociliatosis, and the mortality caused by viral hemorrhagic septicemia and emaciation disease (Jeju) were also high. Our results can contribute to effective establishment prevention of epidemics system and acquired status as a disease-cleansing country.

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5국내 수산용의약품의 관리 현황 모니터링

저자 : 김영재 ( Young-jae Kim ) , 서정수 ( Jung-soo Seo ) , 박전오 ( Jeon-oh Park ) , 정아름 ( Ah Reum Jeong ) , 이지훈 ( Ji-hoon Lee )

발행기관 : 한국어병학회 간행물 : 한국어병학회지 32권 1호 발행 연도 : 2019 페이지 : pp. 37-43 (7 pages)

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전 세계적으로 양식 산업의 급속한 성장으로 인해 수산생물의 생산량 증가와 함께 질병발생이 증가함에 따라 수산용의약품의 사용량이 매년 증가하고 있다. 수산용의약품은 수산생물질병의 예방 및 치료에 필수적인 반면, 의약품의 오·남용으로 인해 항생제 내성균 증가 및 수산식품의 위생학적 안전성에 심각한 문제를 야기할 수 있다. 따라서 본 연구에서는 국내에 위치한 모든 수산질병관리원을 조사하고, 여기서 판매되는 수산용의약품을 지역별로 2012년과 2015년에 비교 조사하였다. 더불어 수산용의약품의 판매경로를 조사함으로서 수산식품안전성 강화를 위한 기초자료로서 활용이 가능하다. 나아가 향후 연구에서는 수산양식장에서 직접 사용하는 의약품의 양을 집계하여 본 연구 결과와 비교분석 후 효과적인 수산용의약품 관리체계를 마련해야할 것이다.


Due to the rapid global expansion of aquaculture industry during the past decades, production volume of aquatic organisms has accordingly grown. This has been accompanied by a rise in the incidence of diseases in aquatic organisms, leading to an increased use of aquatic medicines. While aquatic medicines are essential for the prevention and treatment of diseases of aquatic organisms, misuse can cause evolution of antibiotic-resistant bacteria and pose serious problems to the safety and hygiene of fisheries products. In this study, we surveyed and compared, by analyzing data compiled by all national control centers for aquatic animal diseases in South Korea, to estimate the amount of aquatic medicines sold in different regions between 2012 through 2015. Since we also examined the marketing routes of aquatic medicines, this basic data can be utilized for policy implementation to improve drug safety. In the future research, however, it will be clearly necessary to estimate directly the amounts of drugs actually applied to aquaculture organisms. The current sales figure data should be helpful for preparation of an effective system for aquatic drug use management.

KCI후보

6White spot syndrome virus (WSSV)의 VP28에 대한 단클론 항체 생산

저자 : 방지형 ( Ji-hyeong Bang ) , 김위식 ( Wi-sik Kim ) , 김춘섭 ( Choon-sup Kim ) , 김종오 ( Jong-oh Kim ) , 오명주 ( Myung-joo Oh )

발행기관 : 한국어병학회 간행물 : 한국어병학회지 32권 1호 발행 연도 : 2019 페이지 : pp. 45-62 (18 pages)

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We developed and subsequently characterized mouse monoclonal antibodies (MAbs) against recombinant VP28 structural protein (rVP28) of white spot syndrome virus (WSSV). We established six hybridoma clones secreting MAbs against rVP28: 15A11, 20G6, 31H2, 34H6, 38D1 and 43A1. All six MAbs recognized the 25 kDa of protein in gill homogenates of WSSV-infected shrimp by western blot analysis, while no reactivity was observed in gill homogenates of normal shrimp. Moreover, high enzyme-linked immunosorbent assay (ELISA) optical density (OD) values (0.8-2.68) were observed in the hemolymphs from WSSV-infected shrimp, while low OD values (less than 0.24) were recorded in the hemolymphs from normal shrimp, by using these six MAbs produced in this study. These results suggest that these six MAbs are useful for the detection of WSSV.

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(2006)홍길동 외 1명심리학41회 피인용

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