Bacterial and Viral Diseases of Kuruma Shrimp (Penaeus japonicus) in Japan.

• Takahashi Yukinori

  Department of Applied Aquabiology, National Fisheries University

• Itami Toshiaki

  Department of Applied Aquabiology, National Fisheries University

• Maeda Minoru

  Department of Applied Aquabiology, National Fisheries University

• Kondo Masakazu

  Department of Applied Aquabiology, National Fisheries University

Bibliographic Information

Other Title

• 日本の養殖クルマエビにおける細菌性およびウイルス性疾病
• Bacterial and Viral Diseases of Kuruma

Abstract

Three major disease problems that have been reported in kuruma shrimp (Penaeus japonicus) culture in Japan are vibriosis, penaeid acute viremia (PAV) and baculoviral mid-gut gland necrosis (BMN).<BR>Vibriosis in kuruma shrimp was first reported in 1985, and since then it has seriously damaged the culture of this species in Japan. The characteristic signs of this disease are brown spots in the lymphoid organs and in the gills, and cloudiness of muscle in the sixth abdominal segment. This bacterium was identified as a new species in the genus Vibrio and named Vibrio penaeicida.<BR>Outbreaks of PAV, causing serious mortality of kuruma shrimp and being closely related to white spot baculovirus infection of penaeid shrimp, have been reported in Japan since 1993. Diseased shrimp show white spots in the carapace and reddish discoloration of the body. A non-occluded bacilliform virus, penaeid rod-shaped DNA virus (PRDV), was observed under the transmission electron microscope. In order to detect the virus, primers for the polymerase chain reaction (PCR) were developed. PCR has been successfully used for diagnosis and detection of carrier state crustaceans.<BR>BMN is the epizootic of kuruma shrimp larvae in Japan. The typical sign of this disease is a white-turbid mid-gut gland that shows remarkable cellular necrosis and no inclusion body in the section. Rod-shaped particles, resembling baculovirus, are found in the affected nuclei under the electron microscope.<BR>Attempts were made to evaluate the efficacy of immunostimulants to kuruma shrimp as potential agents for the prophylaxis of vibriosis and PAV. The oral administration of a peptidoglycan derived from Bifidobacterium thermophilum is effective in preventing these diseases in kuruma shrimp.

Journal

• Fish Pathology

  Fish Pathology 33 (4), 357-364, 1998

  The Japanese Society of Fish Pathology

Keywords

• PRDV
• PAV
• WSSV
• Vibrio penaeicida
• vibriosis
• BMNV

Details

• CRID: 1390282681437525888
• NII Article ID: 10019211931
• NII Book ID: AN00063165
• DOI: 10.3147/jsfp.33.357
• ISSN: 18817335
• ISSN: 0388788X
• NDL BIB ID: 4595645
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4595645
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed