An orally administered vaccine product holds great promise for aquaculture, and Maryland-based startup VakSea is on the cusp of providing one. Sensing a major opportunity, the company’s focus has pivoted to shrimp.
Farming of giant freshwater prawns is very popular in China. The Yangtze River Delta region produces more than 60 percent of the country's output. Production increases have resulted from a novel system that involves greenhouses that allow ponds to be
Live markets represent a promising niche in regions where locally raised seafood cannot compete with inexpensive imports. Study results suggested regional shrimp producers could effectively reach premium markets by shipping using waterless methods.
Freshwater shrimp can contain pathogenic bacteria that cause illness unless care is exercised by producers, retailers and consumers. Many of the human pathogens can survive frozen storage, but are killed or inactivated by thermal processes.
Spoilage in freshwater prawns is endogenous rather than exogenous and results from proteolytic enzymes in the cephalothorax.
In analysis of nine strains of freshwater prawns, wild Myanmar and cultured India populations had the greatest allelic richness and expected heterozygosity.
The addition of methyltestosterone to freshwater prawns diets did not significantly change the percentage of males in the population, but reduced survival.
The operation of a freshwater prawn hatchery in temperate climates presents a variety of challenges not found in the traditional greenwater or flow-through systems.
U.S. commercial culture of freshwater prawns has increased thanks to added substrate, increased stocking densities and feed rates and size grading.