Chlorine disinfection against hepatopancreatic parvovirus (HPV) infection in shrimp (Penaeus monodon) larvae
AQD Access
Date
2005-03Page views
2,157ASFA keyword
AGROVOC keyword
Taxonomic term
Metadata
Show full item recordShare
Abstract
Experiments were undertaken to determine the efficacy of chlorine as a disinfectant in inhibiting HPV infection among P. monodon postlarvae (PLs). Based on histopathological examination, 50 ppm and 200 ppm active chlorine at two different exposure durations (12 and 24 hr), failed to inhibit the transmission of HPV in the experimental PLs. Higher chlorine concentrations, 500 ppm and 1,000 ppm for 24 hr exposure, decreased percentage of HPV infection, but failed to completely inhibit the transmission of the virus in PLs.
It is recommended that other disinfecting agents be tested as HPV appears to be resistant to chlorine. Also, the experimental design should be modified in order to actually simulate existence of HPV as an infectious agent in hatchery conditions.
Suggested Citation
Catap, E. S., & de la Peña, L. D. (2005). Chlorine disinfection against hepatopancreatic parvovirus (HPV) infection in shrimp (Penaeus monodon) larvae. In K. Nagasawa (Ed.), Recent Advances in Diagnosis and Prevention of Fish and Shrimp Diseases in Southeast Asia (pp. 51–57). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.
Type
Book chapterISBN
9718511732Related items
Showing items related by title, author, creator and subject.
-
[The Philippines recommends for mangrove crab:] Hatchery operations
(DOST-PCAARRD, 2021) -
The use of chemicals in aquaculture in Thailand
(Aquaculture Department, Southeast Asian Fisheries Development Center, 2000)In Thailand, many chemicals are used to treat diseases of cultured aquatic animals and to improve water quality in culture facilities. Along with the intensification of aquaculture practices that has occurred in recent years in Thailand, chemical use has also increased, particularly in marine shrimp culture. This paper summarizes information on the types of chemotherapeutants commonly used in Thailand, their sources and costs, the treatment regimes used, the adverse impacts that have resulted and the hazards posed. Also included is information on national regulations, a summary of on-going research, and recommendations to aquaculturists, producers and suppliers of chemicals, government agencies and scientists. It is concluded that although chemicals and drugs will continue to play an important role in the development of Thai aquaculture, they must be used with caution to avoid adverse effects such as environmental damage and the development of resistant strains of pathogens. To minimize chemical usage, additional emphasis needs to be placed on developing good management practices for aquaculture systems. -
The use of chemicals in aquaculture in Taiwan, Province of China
(Aquaculture Department, Southeast Asian Fisheries Development Center, 2000)Aquaculture in Taiwan has a history of more than three centuries. To satisfy consumer preferences, a wide variety of aquatic species, 71 in 1993, are being cultured in Taiwan. It is difficult to control diseases when many species are cultured and stocking densities are high. At present, it is important to manage the use and application of chemotherapeutants effectively. Many aquatic animal diseases fall under the category of potentially curable illnesses. These include diseases of bacterial, protozoan, fungal, and environmental etiologies. This paper summarizes the chemicals used in aquaculture, farm management practices, alternative disease prevention methods, national regulations, and the current research on chemical use for aquaculture in Taiwan.
