The white spot syndrome is one of the most serious disease which has caused high mortalities and huge economic losses to shrimp culture. In the present study, the oral administrations with CpG ODNs and Yarrowia lipolytica harboring VP28 (rVP28-yl) as dietary supplement for shrimp Litopenaeus vannamei were conducted to evaluate their protective effects against WSSV. After feeding for 15 days, th...

The effect of acute and chronic cold exposure on heart rate (HR) and neuronal function in crayfish Procambarus clarkii and prawns Macrobrachium rosenbergii was addressed. This is particularly important since prawn farms of this species are used for aquaculture in varied climates world wide. The success of P. clarkii as an invasive species throughout the world may in part be due to their ability...

The giant freshwater prawn, Macrobrachium rosenbergii, is a prawn that has economic significance throughout the world. It exhibits sex-related growth dimorphism, whereby males grow significantly more rapidly than females. Therefore, study on molecular regulatory mechanism, which underlies sexual differentiation of M. both scientific and commercial importance. However, scarcity genomic transcrip...

Taking an innovative approach, a vaccination study using five bacterial strains viz. Vibrio campbelli (B60), V. alginolyticus (B73), V. parahaemolyticus-like (B79), V. parahaemolyticus (R8) and V. harveyi (RG203) was conducted in Penaeus monodon against white spot syndrome virus (WSSV) infection, considered as one of the serious pathogens of shrimps. Oral challenge with shrimps infected with WS...

Studies on lymphoid organ spheroid (LOS) cells of Penaeus monodon were undertaken. Phenoloxidase and peroxidase assays showed that LOS cells have characteristics similar to semi-granular and, in particular, large granular haemocytes. The mean percentage of LOS cells positive for phenoloxidase and peroxidase was 85 +/- 23 and 82 +/- 23%, respectively. There was no significant difference between ...

The size-frequency distribution of the commercial catch is often used as the basis of fisheries stock assessments (Pauly and Morgan, 1987; Gulland and Rosenberg, 1992) because most dynamic processes of populations (growth, survival, recruitment) are reflected in changes in this distribution. The data are generally collected, often at great expense, by sampling the catch at landing sites and mar...

Antimicrobial peptides are important innate immune defense, especially in those animals which lack adaptive immunity [1e8]. Due to their small size, amphipathic structure and cationic character they can rapidly diffuse to the point of infection [9], a mechanism that presumably makes it easier to circumvent microbial resistance against the peptides [10]. Besides providing an immediate and broad-...