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Diagnostic and preventive practices for WSSV in Japan

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Mushiake2002-Diagnostic-and-preventive-practices-for-WSSV-in-Japan.pdf (351.5Kb) Open Access
Downloads: 469
Date
2002
Author
Mushiake, Keiichi
Page views
2,943
ASFA keyword
disease control ASFA
animal diseases ASFA
viruses ASFA
polymerase chain reaction ASFA
roes ASFA
AGROVOC keyword
diagnosis AGROVOC
Penaeus japonicus AGROVOC
Japan AGROVOC
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Abstract
White spot syndrome (WSS), considered equivalent to PAV (penaeid acute viremia) in Japan, has become the most serious problem not only in the farming industry but also in hatcheries for sea ranching of kuruma prawn, Penaeus japonicus. The prevalence of WSSV (white spot syndrome virus), the causative agent of WSS, was examined in wild kuruma prawn broodstocks by nested PCR (polymerase chain reaction). As a result, WSSV was detected at the highest prevalence (10.1%) in the ovary of female prawn. This result indicates that spawners are sources of infection. In 1997, brooders were pre-screened using PCR to detect WSSV before these spawned. WSSV was noted to occur in postlarvae obtained from brooders caught between July and August. In 1998 and 1999, eggs were selected based on WSSV detection by PCR from receptaculum seminis of spawned broodstock. Consequently, WSSV did not occur in their offsprings in both years. These results strongly indicate that selection of eggs based on PCR results is a practical way of controlling WSSV in hatcheries.
URI
http://hdl.handle.net/10862/1990
Suggested Citation
Mushiake, K. (2002). Diagnostic and preventive practices for WSSV in Japan. In Y. Inui & E. R. Cruz-Lacierda (Eds.), Disease Control in Fish and Shrimp Aquaculture in Southeast Asia - Diagnosis and Husbandry Techniques: Proceedings of the SEAFDEC-OIE Seminar-Workshop on Disease Control in Fish and Shrimp Aquaculture in Southeast Asia - Diagnosis and Husbandry Techniques, 4-6 December 2001, Iloilo City, Philippines (pp. 65-74). Tigbauan, Iloilo, Philippines: SEAFDEC Aquaculture Department.
Type
Conference paper
ISBN
9718511601
Collections
  • Disease Control in Fish and Shrimp Aquaculture in Southeast Asia – Diagnosis and Husbandry Techniques [15]


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