Objective. The present study aimed to investigate the presence of vibrios in the hepatopancreas of cultured shrimp. Materials and methods. Vibrios from the hepatopancreas of fifteen samples of five specimens each, of apparently healthy Pacific white shrimp (Litopenaeus vannamei) were isolated, identified and quantified. Results. The vibrio density ranged from 430 to 2,400 MPN g-1 (rs MPN cm-1=-...

BP-type viruses infect wild and farmed shrimp species in the Americas and can cause high mortality in larval stages. Histologically, BP disease is characterized by the presence of occlusion bodies (OBs) in the nucleus of hepatopancreatic epithelial cells. By in situ hybridization using different molecular probes, we tested shrimp infected with BP-type viruses collected from several geographical...

The aim of this study was to evaluate the sensory quality Pacific white shrimp (L. vannamei) fed diets in which fish meal replaced by soy protein concentrate. Four were evaluated, with different levels replacement (33%, 66% and 100%) In analysis, 50 tasters evaluated using ordering preference test acceptability shrimp. inclusion vegetable source diet showed no difference discriminatory did not ...

This study evaluated the effect of thermal fluctuation on susceptibility Pacific White Shrimp to infection with Spot Syndrome Virus (WSSV). The shrimps were divided into two treatments: infected and subjected from 28°C 18°C for 48 h back (TF); kept at a constant temperature (CT).

Pacific white shrimp (Litopenaeus vannamei) is the most extensively farmed crustacean species in the world. White spot syndrome virus (WSSV) is one of the major pathogens in the cultured shrimp. However, the molecular mechanisms of the host-virus interaction remain largely unknown. In this study, the impact of WSSV infection on host gene expression in the hepatopancreas of L. vannamei was inves...

BACKGROUND Litopenaeus Vannamei, well known as pacific white shrimp, is the most popular shrimp in the world shrimp market. Identification and characterization of shrimp muscle regulatory genes are not only important for shrimp genetic improvement, but also facilitate comparative genomic tools for understanding of muscle development and regeneration. METHODOLOGY/PRINCIPAL FINDINGS A novel mRN...

MicroRNAs (miRNAs) are known to play an important role in regulating both adaptive and innate immunity. Pacific white shrimp (Litopenaeus vannamei) is the most widely farmed crustacean species in the world. However, little is known about the role miRNAs play in shrimp immunity. To understand the impact of viral infection on miRNA expression in shrimp, we used high-throughput sequencing technolo...

Penaeus vannamei (Pacific white legged shrimp), is an exotic shrimp species introduced to India in 2009, and is currently been extensively cultured along the Southeast coastal region of the Country. The expansion of the industry had resulted in mushrooming up of unapproved hatcheries and farms which do not implement adequate biosecurity measures or good management practices required for farming...

To analyze the effects of ambient microbiota on gut Pacific white shrimp, Litopenaeus vannamei, at different aquaculture stages, shrimp and water sediment stages were collected analyzed through high-throughput sequencing 16S rDNA. Our results showed that various alpha-diversity indices late stage (LAS) significantly higher than those early (EAS). The average degree co-occurrence network constru...