Responsibility
Feed trays or broadcasting?
At higher stocking densities, the application of all feed via feed trays often results in feed being dropped outside and/or underneath the trays.
Innovation & Investment
Optical counter provides accurate shrimp measurements
Optical scanning and associated imaging software reduces stress and increases accuracy as compared to traditional techniques for shrimp measurements.
Health & Welfare
Shrimp necrosis has infectious etiology
Researchers studied the nature of muscle necrosis in shrimp by sampling infected shrimp from local ponds and challenging healthy specimen with filtrates from the diseased shrimp.
Health & Welfare
Aquaculture disease diagnosis is detective work
Those charged with determining the underlying cause of a disease outbreak have a wide variety of detective tools at their disposal.
Health & Welfare
Settling chambers remove suspended solids, but limit biofloc in shrimp system
Shrimp survival, weight, yield and feed conversion were better in farm units that operated with settling chambers for solids removal than in units without.
Health & Welfare
Recent developments in biofloc technology
Combining biofloc technology with bio-secure modular shrimp culture can make operations more sustainable and economically viable. For optimized biofloc production, lined ponds and reservoirs and high stocking densities are essential. Paddlewheel aerators keep dissolved-oxygen levels high.
Health & Welfare
Shrimp genetic improvement in Ecuador
One of the largest shrimp maturation operations in Ecuador is working with five major shrimp producers to improve growth rates.
Health & Welfare
Early Mortality Syndrome threatens Asia’s shrimp farms
The emerging disease Early Mortality Syndrome has caused large losses among shrimp farmers. EMS is characterized by mass mortalities during the first 30 days of culture.
Health & Welfare
Blue-green algae pose toxic risks in shrimp, fish culture
The toxins from blue-green algae pose a threat to animal health and potentially to consumers if they are present in farmed product. Culture animals that ingest these toxins may not die, but can be weakened, increasing their susceptibility to pathogens.
Health & Welfare
Temperature affects shrimp survival, feed conversion
In laboratory tests with white shrimp, feed consumption was 36.5 percent higher at 33 degrees-C than at 29. Growth was similar at both temperatures.
Health & Welfare
Shrimp postlarvae: Know your starting point
Shrimp aquaculture could improve its position through more accurate and consistent identification and counting of postlarvae.
Health & Welfare
The Shrimp Book: Intensive production of shrimp
With relatively low use of land and water, intensive aquaculture systems can support much higher production than extensive systems.
Health & Welfare
Computer modeling helps grow fish
For farmers, computer modeling helps analyze crop production and environmental effects. For managers, it assists with carrying capacity assessments and licensing issues.
Health & Welfare
Temperature affects feeding behavior of Pacific white shrimp
The authors evaluated the feed passage through the intestines of white shrimp under laboratory conditions. Feed consumption on feed trays was tested four times daily at different temperatures at an intensive culture farm.
Aquafeeds
Live diets for larval fish, shrimp: Production, enrichment, feeding strategies
Live diets for reared marine larvae must be cost-effective and versatile while providing good nutrition and being easily captured and digested. Copepods offer superior nutritional value, but their rearing requires space and is laborious.
Health & Welfare
Effective management of WSSV in shrimp
As research on WSSV continues, commonsense steps can lessen the potential impacts of white spot syndrome virus on shrimp-farming operations.