18 Cooked prawn colour is known to be a driver of market price and a visual 19 indicator of product quality for the consumer. Although there is a general 20 understanding that colour variation exists in farmed prawns, there has been no 21 attempt to quantify this variation or identify where this variation is most 22 prevalent. The objectives of this study were threefold: firstly to compare thre...

In this study, two Sxl gene homologs, designated as Mnsxl1 and Mnsxl2, were cloned and characterized from the freshwater prawn Macrobrachium nipponense by rapid amplification of cDNA ends. The deduced amino acid sequences of Mnsxl1 and Mnsxl2 showed high sequence homology to the insect Sxl and contained conserved domains in two RNA-binding motifs. Real-time quantitative reverse transcription-po...

The freshwater giant prawn, Macrobrachium rosenbergii inoculated with Pseudomonas aeruginosa MTCC 1688 revealed pathogenic symptoms in certain tissue biochemical parameters. The tissue proteins showed proteolysis. The chitinase and phenol oxidase activity in tissues revealed marked inhibition. The culmination of these biochemical changes is attributed to the tissue pathological changes characte...

A feeding trial was conducted for 75 days to study the effects of live brewer’s yeast (Saccharomyces cerevisiae) on growth and body composition in post larvae of the giant freshwater prawn, Macrobrachium rosenbergii (de Man). Five diets were formulated containing optimum protein level of 35.24±0.04. These experimental feeds were supplemented with 0.0% (control diet), 0.1%, 0.2%, 0.5% and 1.0% l...

The total haemocyte count (THC), phenoloxidase activity, respiratory burst (release of superoxide anion), superoxide dismutase activity, and phagocytic activity and clearance efficiency to the pathogen Lactococcus garvieae were measured when freshwater giant prawns Macrobrachium rosenbergii (16.2 +/- 2.1 g) were individually injected with saline, or dopamine at 0.5, 5.0, or 50.0 pmol prawn(-1)....

A study was undertaken to determine the most effective element among the commonly used antimicrobial agents, especially in the body muscle of black tiger shrimp (Penaeus monodon) and giant freshwater prawn (Macrobrachium rosenbergii) on the basis of different chemical interventions. Using 10 ppm calcium hypochlorite, the microbial load has been reduced more significantly (p>0.001) than trisodiu...

macrobrachium rosenbergii lifecycle is unique so that the adults thrive in freshwater and larval development requires brackish water environments near to estuaries as close as possible to larval body isosmotic for minimum na/k-atpase activity and maximum atp storage. osmoregulation system at early larval stages is not formed and larval osmoregulation is mainly attributed to na/k-atpase activity...

Seafood allergy seems to be increasing in Asia as well as worldwide. Characterization of seafood allergens is important in order to understand the immune response to these allergens. To date, several prawn allergens have been identified including tropomyosin, arginine kinase, sarcoplasmic calcium-binding protein (SCP) and myosin light-chain (MLC). Objective: The aim of this study was to identif...

The growth rate and mortality of giant prawns (Macrobrachium rosenbergii) in the Kuala Cenaku River, Indragiri Hulu Regency, Riau Province were carried out based on carapace length frequency data collected from May to July 2020. This study aims at River. For estimating dynamic population, analysed by using FiSAT II. parameter tiger shrimp was 0,78/year with asymptotic (L) 84,8 mm, total (Z), na...