cDNA encoding prophenoloxidase (proPO) of the white shrimp Litopenaeus vannamei was obtained from haemocytes by a reverse-transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA using oligonucleotide primers based on the proPO sequence of tiger shrimp Penaeus monodon, freshwater crayfish Pacifastacus leniusculus, green tiger shrimp Penaeus semisulcatus (accession no.: A...

The turbid, low-light waters characteristic of aquaculture ponds have made it difficult or impossible for previous video cameras to provide clear imagery of the ponds' benthic habitat. We developed a highly sensitive, underwater video system (UVS) for this particular application and tested it in shrimp ponds having turbidities typical of those in southern Taiwan. The system's high-quality video...

Vibrio harveyi is a Gram-negative bacterium associated with vibriosis in penaeid shrimp. Here, we report the draft genome sequence of a V. harveyi strain isolated from Pacific white shrimp (Litopenaeus vannamei) during a vibriosis outbreak. The availability of this genome will aid future studies of vibriosis in shrimp aquaculture.

Current methods to detect hepatopancreatic parvovirus (HPV) infection of penaeid shrimp depend on invasive techniques that require dissecting the organs infected by this virus. However, sacrificing valuable stocks in order to determine their HPV status can be a drawback in the case of breeding programs. A method was developed for HPV detection by applying a polymerase chain reaction (PCR) assay...

The influence of different drying methods on physical and nutritional properties of shrimp meat was investigated in this study. Peeled shrimps were dried separately using an air-oven dryer and a tunnel solar dryer. The drying profile of shrimp meat was determined in the two drying systems by monitoring moisture loss over the drying period. Changes in color, proximate composition, and rehydratio...

In the period from 1970-1990, the worldwide shrimp industry was dependent on post larvae (PL) from wild sources. Grow-out systems were relatively simple, water exchange rates were high and few disease agents were known. Diagnostic capability was low and antibiotics and chemical use was common. Explosive increase in global shrimp cultivation was accompanied by viral pandemics starting around 198...

Hepatopancreatic parvovirus (HPV) causes disease in several species of penaeid shrimp. Heavy infections may result in poor growth and reduced production for shrimp farmers. From one southern Thai shrimp pond with a high prevalence of HPV infection, 790 shrimp were sampled randomly and the hepatopancreas (HP) removed. Most HP were preserved in liquid nitrogen. However, every 10th HP (79 total) w...

Ž . The Taura syndrome TS is one of the viral shrimp diseases that has most affected cultivation of the shrimp Litopenaeus Õannamei in America. We analyzed the presence of TS, from its first detection in May 1995 in 75% of the shrimp farms of the Guasave district in Sinaloa State, Mexico, and its progressive spreading from the north toward the central and southern zones of the ́ state, to the di...

RNA interference (RNAi) has been shown to inhibit viral replication in some animals and plants. Whether the RNAi is functional in shrimp remains to be demonstrated. In vitro transcribed dsRNAs of YHV helicase, polymerase, protease, gp116, and gp64 were transfected into shrimp primary cell culture and found to inhibit YHV replication. dsRNA targeted to nonstructural genes (protease, polymerase, ...