A5048996932- Aquaculture disease management and microbiota
- Aquaculture Nutrition and Growth
- Invertebrate Immune Response Mechanisms
- Animal Virus Infections Studies
- Antibiotics Pharmacokinetics and Efficacy
- Identification and Quantification in Food
- interferon and immune responses
- Pharmaceutical and Antibiotic Environmental Impacts
- Microbial infections and disease research
- Parasite Biology and Host Interactions
- Immune Response and Inflammation
- Virus-based gene therapy research
- Viral Infections and Vectors
- Antimicrobial Peptides and Activities
- Marine and Coastal Research
- Viral Infectious Diseases and Gene Expression in Insects
- Bacteriophages and microbial interactions
- Marine Bivalve and Aquaculture Studies
- Analytical Methods in Pharmaceuticals
- Malaria Research and Control
- Crustacean biology and ecology
- Fish Biology and Ecology Studies
- Vibrio bacteria research studies
- Reproductive biology and impacts on aquatic species
- Water Quality Monitoring Technologies
Korea Fisheries Resources Agency
2021-2025
National Pension Service
2022-2025
National Institute of Fisheries Science
2012-2021
Korea Maritime and Ocean University
2016
Research & Development Institute
2012
Konkuk University
2006
White spot syndrome virus (WSSV) is the most problematic pathogen in crustaceans. In this study, we investigated horizontal transmission model of WSSV based on correlation between disease severity grade and viral shedding rate determined minimum infective dose via waterborne route. Intramuscular injection challenges at different doses water temperatures revealed that thresholds mortality were G1 (3.1 × 103 copies/mg) G2 (8.5 104 copies/mg), respectively. Furthermore, a positive linear was...
ABSTRACT Viral hemorrhagic septicemia virus (VHSV) is a major pathogen in aquaculture worldwide, causing significant outbreaks through waterborne transmission. This study aimed to evaluate the effectiveness of environmental RNA (eRNA)‐based surveillance for detecting VHSV systems, focusing on relationship between infection dynamics, water temperature, and fish weight. Over an 8‐month period, prevalence was assessed outlet samples from six olive flounder farms Jeju Island, South Korea. Higher...
Red sea bream iridovirus (RSIV) causes significant economic losses in aquaculture. Here, we analyzed the pathogenicity, viral shedding, and transmission dynamics of RSIV rock (Oplegnathus fasciatus) by employing immersion infection cohabitation challenge models. Rock challenged exposure exhibited 100% mortality within 35 days post exposure, indicating that shedding seawater peaked after mortality. At 25 °C, a positive correlation between loads infected virus into was observed. Specific...
The objective of this study was to investigate the pharmacokinetic (PK) properties oxolinic acid (OA) in black rockfish (Sebastes schlegelii) following a single oral administration 30 mg/kg at 13°C and 22°C. Serum tissue (muscle, liver kidney) samples were collected pre-determined time points analysed using high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS). results demonstrated that temperature significantly influenced PK parameters OA. terminal...
Background: Amoxicillin (AMOX) is widely used in aquaculture for bacterial infections due to its efficacy and safety. Despite official approval select species, off-label use common. This study evaluated the antibacterial residue depletion of AMOX five species: olive flounder (Paralichthys olivaceus), rainbow trout (Oncorhynchus mykiss), Japanese eel (Anguilla japonica), black rockfish (Sebastes schlegelii), Israeli carp (Cyprinus carpio). Methods: Fish were administered orally at 40 mg/kg 80...
The consumption of cultured crustaceans has been steadily increasing, and Pacific whiteleg shrimp (Litopenaeus vannamei) are major cultivated invertebrates worldwide. However, productivity faces a variety challenges, mainly related to outbreaks lethal or growth retardation-related diseases. In particular, hepatopancreatic microsporidiosis caused by the microsporidian parasite Enterocytozoon hepatopenaei (EHP) is an important disease associated with retardation in shrimp. Here, we report...
Red sea bream iridoviral disease (RSIVD) causes serious economic losses in the aquaculture industry. In this paper, we evaluated RSIV kinetics rock under various rearing water temperatures and different inoculation concentrations. High viral copy numbers (approximately 103.7-106.7 genome copies/L/g) were observed during period of active fish mortality after infection at all concentrations tanks (25 °C 20 °C). group injected with 104 copies/fish, was not detected 21-30 days post-infection...
Dietary inclusion effect of yacon (YC), ginger (GG) and blueberry (BB) on the growth, feed utilization, body composition plasma chemistry olive flounder immunity test against Streptococcus iniae compared to a commercial probiotic (Lactobacillus fermentum) was investigated. Six hundred fish were randomly distributed into 15, 50 L flow-through tanks (40 per tank). Five experimental diets prepared in triplicates. No additives added control (CON) diet. The commercially available 0.5% L....
The high virulence of the white spot syndrome virus (WSSV) in acute infections and lack effective treatments underscore necessity for a rapid, accurate, efficient diagnostic process to control disease. analytical sensitivity assays (polymerase chain reactions; PCRs rapid kit) at different severity grades WSSV infection were determined using 95% limit detection (LOD95%). LOD95% nested, real-time, one-step kit 0.70, 4.67, 1.19, 79,434.65 viral genome copies/reactions, respectively. From...
Effects of dietary inclusion yacon, Polymnia sonchifolia (YC), ginger, Zingiber officinale (GG), and blueberry, Vaccinium ashei (BB), on growth, body composition challenge test rockfish against Edwardsiella tarda compared to ethoxyquin were investigated. Three hundred sixty fish randomly distributed into 12 flow-through tanks. Four experimental diets prepared: the control diet (Con) with 0.1 g/kg ethoxyquin, YC, GG BB diets. Each was assigned triplicate tanks hand-fed for 8 weeks. Externally...
In the Republic of Korea, Enterocytozoon hepatopenaei (EHP) was first isolated from Pacific whiteleg shrimp in April 2020; however, there are no existing reports EHP infection other or prawns. Here, we aimed to investigate and its prevalence giant freshwater prawn farms Korea. We tested prawns 22 for infection, samples eight showed positive results 2021. EHP-infected farms, ranged 4.9% 18.2%. The derived estimated be 0.8% proliferation observed within hepatopancreatic epithelial cells using...
Red sea bream iridovirus (RSIV) causes significant economic losses in the aquaculture industry. We analyzed pathogenicity of RSIV flathead grey mullets (Mugil cephalus), correlation histopathological lesions, and interspecies horizontal transmission, through immersion infection cohabitation challenges. Flathead mullets, which were challenged by infection, exhibited mortality at 14 24 days after exposure. Viral shedding seawater peaked 2-3 before or observed mortality. Specific lesions spleen...
Parasitic infections pose significant challenges in aquaculture, and the increasing resistance to conventional anthelmintics necessitates exploration of alternative treatments. Levamisole hydrochloride (HCl) has demonstrated efficacy against monogenean various fish species; however, research focused on Microcotyle sebastis Korean rockfish (Sebastes schlegelii) remains limited. Therefore, this study aimed evaluate levamisole HCl M. with goal optimizing anthelmintic usage aquaculture. In...
2007년~2011년 하절기에 국내 동 서 남해안과 제주의 육상양식장, 가두리 및 축제식 양식장에서 사육중인 넙치 (Paralichthys olivaceus), 조피볼락 (Sebastes schlegeli), 참돔 (Pagrus major), 흰다리새우 (Litopenaeus vannamei) 의 총 2,413마리에 대하여 세균과 기생충의 감염현황을 조사하였다. 조사기간(2007년~2011년) 사이 어종별 병원체에 대한 감염양상을 종합하면, 기생충과 세균의 단독감염이 혼합 감염에 비하여 비교적 높게 나타났으며, 단독감염 가운데 기생충이 세균보다 감염률이 높은 경향을 나타내었다. 조사기간 동안 넙치, 조피볼락, 새우에서 Vibrio spp. (V. harveyi, V. ichthyoenteri, sp.)가 가장 우점종으로 검출된 위치를 차지하였으며, 참돔에서는 sp.와 P. damselae가 우점종 세균으로 검출되었다. 기생충은 넙치에서 스쿠티카충 (M. avidus)과...