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Efficacy of Calcium Hypochlorite as a Disinfectant against the Shrimp Virus Baculovirus penaei
Author(s) -
Leblanc Brian D.,
Overstreet Robin M.
Publication year - 1991
Publication title -
journal of aquatic animal health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 52
eISSN - 1548-8667
pISSN - 0899-7659
DOI - 10.1577/1548-8667(1991)003<0141:eochaa>2.3.co;2
Subject(s) - calcium hypochlorite , shrimp , infectivity , disinfectant , bioassay , biology , chlorine , penaeus , virus , calcium , microbiology and biotechnology , sodium hypochlorite , larva , virology , veterinary medicine , fishery , botany , chemistry , medicine , ecology , pathology , organic chemistry
Various concentrations and contact periods of total residual chlorine affected the infectivity of Baculovirus penaei (BP) to larval shrimp Penaeus vannamei in a bioassay. Test shrimp were sampled 46 and 96 h after exposure to calcium hypochlorite‐treated BP and examined by light microscopy for patent infections. The virus was completely inactivated by chlorine concentrations of 200 mg/L when treated for 1 h and by 1,600 mg/L when treated for as short as 20 s. Other concentrations and periods of contact either reduced the prevalence of infection or extended the prepatency period, but they did not inactivate all virus.