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Safety and protective effect of a disinfectant (STEL water) for white spot syndrome viral infection in shrimp
Cited 9 time in
Web of Science
Cited 10 time in Scopus
- Authors
- Issue Date
- 2004-09
- Publisher
- Inter-Research Science Publishing
- Citation
- Diseases of Aquatic Organisms, Vol.60 No.3, pp.253-257
- Abstract
- The efficacy of STEL water for protection against white spot syndrome virus (WSSV) infection was evaluated using shrimp. The LC50 of residual chlorine (Cl-) in STEL water for brood-stock and 2-mo-old shrimp were 2.3 and 3.2 ppm, respectively. All 2-month-old shrimp raised in seawater containing more than 40 mul 2 l(-1) of a WSSV-infected tissue homogenate died within 3 d postexposure (dpe). Thus, a 10-fold dose of 400 mul 2 l(-1) was used in the disinfection tests. Low concentrations of STEL water effectively prevented mortality of shrimp at this challenge dose. All 2month-old shrimp exposed to seawater with 400 mul of viral homogenate disinfected with STEL water at Cl- concentrations over 0.125 ppm for 1 and 10 min, lived until 5 dpe. With 5-mo-old shrimp, all positive control shrimps died within 3 dpe, whereas most shrimp reared in seawater disinfected with STEL water for 1 h before addition of homogenate lived until 5 dpe. Results suggested that continuous disinfection of seawater with STEL water may be effective for preventing WSSV infection in shrimp.
- ISSN
- 0177-5103
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