نتایج جستجو برای: viral nervous necrosis virus

تعداد نتایج: 701446  

2017
Runqing Huang Guohua Zhu Jing Zhang Yuxiong Lai Yu Xu Jianguo He Junfeng Xie

Betanodavirus, also referred to nervous necrosis virus (NNV), is the causative agent of the fatal disease, viral nervous necrosis and has brought significant economic losses in marine and freshwater cultured fish, especially larvae and juveniles. Here, we used an established invasion model with virus-like particle (VLP)-cells, mimicking orange-spotted grouper nervous necrosis virus (OGNNV), to ...

The Persian Gulf and its shores are important and strategic areas with a large variety of fish species. Betanodavirus infection is known to be a serious threat to susceptible fish and causing economic damages to the fisheries and fishing industry. Concerning to isolation and confirmation of VNN virus in the Mullet fish (Chelon aurata and C. saliens) in the Caspian Sea and its damages on Mullet ...

2009
Y. Fukuda H. D. Nguyen M. Furuhashi

Mass mortalities of sevenband grouper Epinephelus septemfasciatus reared in Oita Prefecture were investigated. The outbreaks of the disease occurred in summer seasons (July to October; water temperature 25-28°C) of 1993 and 1994. Affected fish ranging 170 to l,85Og in body weight were characterized by upside down swimming and inflation of swimbladder. Histopathologically, necrosis and vacuolati...

Journal: :caspian journal of internal medicine 0
shahriar shafaei shima soleimani amiri mahmoud hajiahmadi mahmoud sadeghi-haddad- zavareh masomeh bayani

background: hepatitis activity index (hai) and fibrosing stage are two important findings during the evaluation of liver samples in patients with chronic hepatitis b. the aim of this study was to determine the hai and fibrosing stage in patients with anti-hbe positive chronic hepatitis b. methods: liver biopsy slides of 72 patients were evaluated at the department of pathology in two teaching h...

Journal: :International microbiology : the official journal of the Spanish Society for Microbiology 2007
Esther García-Rosado Irene Cano Beatriz Martín-Antonio Alejandro Labella Manuel Manchado M Carmen Alonso Dolores Castro Juan J Borrego

Several microbial disease outbreaks in farm stocks of newly cultured sparid fish species, such as common seabream, redbanded seabream, and white seabream, were recorded from 2004 to 2006. This study describes the isolation and characterization of the potential causative agents, either bacteria or viruses, of these outbreaks. The isolated bacterial strains were characterized according to traditi...

Journal: :Phytopathology research 2022

Abstract Maize lethal necrosis (MLN) is a devastating disease of maize caused by synergistic infection with chlorotic mottle virus (MCMV) and at least one potyvirid (e.g., sugarcane mosaic virus, SCMV). MLN results in leaf necrosis, premature aging, even whole plant death can cause up to 100% losses yield. has emerged worldwide resulted serious loss production. Over the past decade, extensive r...

Journal: :Jurnal Sain Veteriner 2022

Indonesia become a maritime country with large of ocean area and beach line marine species diversity reaches 37% the world’s fish. This makes have aquaculture potential that supported by an appropriate climate. However, challenge viral diseases caused Infectious Spleen Kidney Necrosis Virus (ISKNV) Viral Nervous (VNN) would hamper causing huge economic losses. Therefore, it is necessary to carr...

2015
Peng Jia Kun-Tong Jia Mei-Sheng Yi

We sequenced and analyzed the complete genome of a fish nervous necrosis virus isolated from diseased sea perch (Lateolabrax japonicus) in Guangdong Province, China. The virus genome contains RNA1 (3,103 bp) and RNA2 (1,433 bp). Phylogenetic analysis shows that the virus belongs to the redspotted grouper nervous necrosis virus genotype of betanodavirus.

ژورنال: علمی شیلات ایران 2020

The aim of this study was to identify different virulence pathogens using Real-Time PCR method for rapid and accurate detection of common viral diseases including Infectious Hematopoietic Necrosis (IHN), Viral Hemorrhagic Septicemia (VHS) and Infectious Pancreatic Necrosis disease (IPN) in rainbow trout broodstock have been the main generation of reproductive populations maintained in the natio...

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