EPIDEMIOLOGY OF INFECTIOUS HYPODERMAL AND HEMATOPOIETIC NECROSIS VIRUS IN MACROBRACHIUM ROSENBERGII
Author(s): FAN Dong-Dong, WEI Yong-Wei, MIAO Liang, CHEN Jiong, Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University
Pages: 1153-1159
Year: 2015 Issue: 5
Journal: Oceanologia et Limnologia Sinica
Keyword: infectious hypodermal and haematopoietic necrosis virus(IHHNV); Macrobrachium rosenbergii; infection and epidemiology;
Abstract: Infectious hypodermal and haematopoietic necrosis virus(IHHNV) is one of major viral pathogens of penaeid shrimps. Giant river prawn Macrobrachium rosenbergii is one of the most important shrimp species in China. However, study and report on IHHNV infection and the epidemiology remain blank in the mainland of China. According to the method recommended by OIE(Office International des Epizooties), infection and epidemiology of IHHNV in M. rosenbergii were conducted in the mainland of China. Results show a high positive percentage of IHHNV in M. rosenbergii(90%) in the aquiculture, but no samples showed any syndrome of IHHNV infection. Sequence analysis indicated that the collected strains in South China belonged to the lineage I infectious IHHNV group, and had a close evolutionary relationship with the Philippines strains, while the collected strains in East China belonged to the lineage Ⅱ infectious IHHNV group, and had a close evolutionary relationship with the Southeast Asia strains. This study provides an insightful reference to the prevention and control of IHHNV infection in M. rosenbergii.
Pages: 1153-1159
Year: 2015 Issue: 5
Journal: Oceanologia et Limnologia Sinica
Keyword: infectious hypodermal and haematopoietic necrosis virus(IHHNV); Macrobrachium rosenbergii; infection and epidemiology;
Abstract: Infectious hypodermal and haematopoietic necrosis virus(IHHNV) is one of major viral pathogens of penaeid shrimps. Giant river prawn Macrobrachium rosenbergii is one of the most important shrimp species in China. However, study and report on IHHNV infection and the epidemiology remain blank in the mainland of China. According to the method recommended by OIE(Office International des Epizooties), infection and epidemiology of IHHNV in M. rosenbergii were conducted in the mainland of China. Results show a high positive percentage of IHHNV in M. rosenbergii(90%) in the aquiculture, but no samples showed any syndrome of IHHNV infection. Sequence analysis indicated that the collected strains in South China belonged to the lineage I infectious IHHNV group, and had a close evolutionary relationship with the Philippines strains, while the collected strains in East China belonged to the lineage Ⅱ infectious IHHNV group, and had a close evolutionary relationship with the Southeast Asia strains. This study provides an insightful reference to the prevention and control of IHHNV infection in M. rosenbergii.
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