This study aims to map and analyze the white-leg shrimp supply chain institutions. research was conducted in July-September 2020. Data were collected using structured interviews in-depth interviews. The results showed that white leg consisted of providers production inputs, cultivators, small traders, collectors, exporters. need for partnerships through professional business management contract...

The cDNAs encoding CathL and legumain from Chinese white shrimp Fenneropenaeus chinensis (FcCathL, FcLegu) were obtained. Both FcCathL and FcLegu mRNA were expressed mainly in the hepatopancreas of unchallenged shrimp. Time-course analysis of FcCathL showed that FcCathL was upregulated in the hepatopancreas of shrimp challenged with white spot syndrome virus (WSSV) at 12 h. FcLegu mRNA in hepat...

White spot syndrome (WSS) is a viral disease which affects most of the commercially cultivated marine shrimp species all over the world causing significant losses. Deaths occur within days of symptoms and affect a diverse range of commercial crustacean species. A heavy mortality is usually observed in the entire infected population. Survival rates can be anywhere from 30% to zero. Consequently,...

many shrimp farmers were suffering from white spot disease (wsd) onset in last decades. oscillation of environmental factors could lead mortality in susceptible hosts. the results showed mortality started earliear (36h post inoculation) at 25oc in comparison to the temperature more than 29 oc as well as the salinity of 50 ppt in comparison to the lower degrees of salinities. it is concluded tha...

The survival of many organisms depends on interspecific, mutualistic interactions. Hence, it is important to assess the phylogeography of multiple mutualistic species simultaneously to gain insight into how their metapopulations persist, spread and recover from disturbance. Consequently, we sequenced mitochondrial DNA (cytochrome b) from a gobiid fish (Ctenogobiops feroculus) and its mutualisti...

Prophenoloxidase (proPO) is a melanin-synthesising enzyme that plays important roles in immune responses by crustaceans. Previously, we cloned and characterized proPO-I from white shrimp, Litopenaeus vannamei. In the present study, a novel prophenoloxidase-II (proPO-II) cDNA was also cloned from haemocytes of L. vannamei using oligonucleotide primers and reverse-transcriptase polymerase chain r...

Although invertebrates lack a true adaptive immune response, the potential to vaccinate Penaeus monodon shrimp against white spot syndrome virus (WSSV) using the WSSV envelope proteins VP19 and VP28 was evaluated. Both structural WSSV proteins were N-terminally fused to the maltose binding protein (MBP) and purified after expression in bacteria. Shrimp were vaccinated by intramuscular injection...

in this study, partial and complete replacement of live food ( artemia nauplii) with a microdiet was investigated in post-larval indian white shrimp, fenneropenaeus indicus . post-larvae (pl 1 ) were stocked into nine 20-l vessels (5-l water volume) at a density of 50 l -1 . shrimp were fed six times a day over 10 days. at the end of the feeding period, there was no significant difference in qu...

BACKGROUND White spot syndrome virus (WSSV) is a causative pathogen found in most shrimp farming areas of the world and causes large economic losses to the shrimp aquaculture. The mechanism underlying the molecular pathogenesis of the highly virulent WSSV remains unknown. To better understand the virus-host interactions at the molecular level, the transcriptome profiles in hemocytes of unchalle...