Monitoring of bacteria and parasites in cultured olive flounder, black rockfish, red sea bream and shrimp during summer period in Korea from 2007 to 2011

Jung, Sung Hee; Choi, Hye-Sung; Do, Jeung-Wan; Kim, Myoung Sug; Kwon, Mun‐Gyeong; Seo, Jung Soo; Hwang, Jee Youn; Kim, Seok-Ryel; Cho, Yeong-Rok; Kim, Jin Do; Park, Myoung Ae; Jee, Bo-Young; Cho, Mi Young; Kim, Jin Woo

doi:10.7847/jfp.2012.25.3.231

Cited by 13 publications

(4 citation statements)

References 6 publications

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“…In olive flounder, Vibrio spp. were the most dominant bacteria isolated from the samples collected between 2007 and 2011 Jung et al 2012). Given the long history of olive flounder aquaculture, many epidemiological surveys have been conducted for the purpose of monitoring disease outbreak (Choi et al 2010;Jung et al 2006;Kim 2002;Oh et al 1998;Park et al 2016Park et al , 2009.…”

Section: Introductionmentioning

confidence: 99%

Identification of Vibrio species isolated from cultured olive flounder (Paralichthys olivaceus) in Jeju Island, South Korea

et al. 2019

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Olive flounder (Paralichthys olivaceus) is the major species developed for aquaculture in South Korea. Over the long history of olive flounder aquaculture, complex and diverse diseases have been a major problem, negatively impacting industrial production. Vibriosis is a prolific disease which continuously damages olive flounder aquaculture. A bacterial disease survey was performed from January to June 2017 on 20 olive flounder farms on Jeju Island. A total of 1710 fish were sampled, and bacteria from the external and internal organs of 560 fish were collected. Bacterial strains were identified using 16 s rRNA sequencing. Twenty-seven species and 184 strains of Vibrio were isolated during this survey, and phylogenetic analysis was performed. Bacterial isolates were investigated for the distribution of pathogenic and non-pathogenic species, as well as bacterial presence in tested organs was characterized. V. gigantis and V. scophthalmi were the dominant non-pathogenic and pathogenic strains isolated during this survey, respectively. This study provides data on specific Vibrio spp. isolated from cultured olive flounder in an effort to provide direction for future research and inform aquaculture management practices.

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Section: Introductionmentioning

confidence: 99%

Identification of Vibrio species isolated from cultured olive flounder (Paralichthys olivaceus) in Jeju Island, South Korea

et al. 2019

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“…Vibrio spp. has been one of main pathogens causing high mortality occurred in marine fish including olive flounder Paralichthys olivaceus, black rockfish, and red sea bream Pagrus major and shrimp farm during summer season year after year in Korea (Choi et al 2010a;Jung et al 2012). Therefore, development of new natural source of dietary additive to lower mortality of fish at occurrence of V. anguillarum is highly desired.…”

Section: Introductionmentioning

confidence: 99%

Dietary inclusion effect of yacon, ginger, and blueberry on growth, body composition, and disease resistance of juvenile black rockfish (Sebastes schlegeli) against Vibrio anguillarum

2020

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Background: To minimize the use of antibiotics and to obtain a more sustainable fish culture and aquaculture industry, development of alternative natural source of immunostimulant to replace antibiotic in aquafeed is highly needed. Objective: Dietary inclusion effect of yacon (YC), ginger (GG), and blueberry (BB) on growth, body composition, and disease resistance of black rockfish against Vibrio anguillarum was compared to ethoxyquin (EQ). Methods: Four hundred eighty juvenile (an initial weight of 4.2 g) fish were randomly distributed into 12 of 50 L flowthrough tanks (forty fish per tank). Four experimental diets were prepared; the control (Con) diet with 0.01% EQ inclusion, and YC, GG, and BB diets at 1% each additive inclusion. Each additive was included into the experimental diets at the expense of wheat flour. Each diet was assigned to triplicate tanks of fish and hand-fed to satiation twice daily for 8 weeks. At the end of 8-week feeding trial, 20 fish from each tank fish were artificially infected by intraperitoneal injection with 0.1 mL of culture suspension of pathogenic V. anguillarum containing 3.3 × 10 6 cfu/mL respectively. Fish were monitored for the following 8 days after V. anguillarum infection and dead fish were removed every 6 h for the first 4 days and 12 h for the rest of the study. Results: Weight gain, specific growth rate (SGR), and feed efficiency ratio (FER) of fish fed the YC diet was higher than those of fish fed all other diets. However, feed consumption, protein efficiency ratio, and protein retention was not affected by dietary additive. Moisture, crude protein, and crude lipid content of the whole body of fish were affected by dietary additive. Analysis of the Kaplan-Meier survival curves showed that survival of fish fed the YC, BB, and GG diets was higher than the Con diet. Conclusion: Oral administration of YC can improve not only weight gain, SGR, and FER of black rockfish, but lower mortality of rockfish at occurrence of V. anguillarum.

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“…Various pathogens have been causing mixed infectious diseases and massive deaths of fishes regardless of water temperature (Kim et al 2006). In recent years, as the possibility of the inflow of foreign diseases has increased, there has been an increasing number of studies that generally monitor the diseases or investigate the correlation with diseases (Cho et al 2009;Jung et al 2012;Song et al 2013). However, until now, most of the research done on domestic fish farming have only been focused on specific diseases, and research on the disease of unknown cause is yet considered minor (Kim et al 2006;Cho et al 2008;Kim et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Monitoring of emaciation disease in cultured Paralichthys olivaceus of Jeju island during 2014–2015

et al. 2018

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This study investigated the trend in emaciation infection outbreak in olive flounder (Paralichthys olivaceus) of Jeju island, South Korea, during 2014−2015. A total of 900 fish were systematically examined by PCR method using the EM-F/EM-R primer set in April, May, September, November, and December 2014, and the infection rate was recorded. In 2015, the same examination was conducted in March, May, July, and October but with 660 fish. It was found that the infection rate was 18.3~71.6% in 2014, which increased to 16.3~90.3% in 2015. Furthermore, September and December in 2014 and March, July, and October in 2015 showed a relatively higher infection rate. According to the infection trend analysis, which depended on the sample size, the infection occurred in all of fish sizes in this study and 11~30 cm fish group showed the highest infection rate. Histological examination confirmed that the kidney areas of the emaciating infected olive flounder contained several spores of 4~9 μm, and in severe cases, the elimination and destruction of tissue were confirmed by PCR. Thus, an important portion of farmed olive flounders in the Jeju region suffers from emaciation disease. This epidemiological survey serves as a useful reference on the emaciation disease of cultured olive flounders in Jeju.

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Monitoring of bacteria and parasites in cultured olive flounder, black rockfish, red sea bream and shrimp during summer period in Korea from 2007 to 2011

Cited by 13 publications

References 6 publications

Identification of Vibrio species isolated from cultured olive flounder (Paralichthys olivaceus) in Jeju Island, South Korea

Identification of Vibrio species isolated from cultured olive flounder (Paralichthys olivaceus) in Jeju Island, South Korea

Dietary inclusion effect of yacon, ginger, and blueberry on growth, body composition, and disease resistance of juvenile black rockfish (Sebastes schlegeli) against Vibrio anguillarum

Monitoring of emaciation disease in cultured Paralichthys olivaceus of Jeju island during 2014–2015

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