News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.

nutrients

Aquafeeds

Pangasius diet trials show promise of DDGS

A feeding trial incorporated corn distillers dried grains with solubles (DDGS) as an energy and protein source in starter and grower diets for pangasius. Results showed excellent fish growth performance, and no negative effects on mortality, fillet yield or fillet 

Aquafeeds

NIRS technology ensures shrimp feed quality at farm level

Feed plants deal with varied raw materials, formulations and feeds for different animals, which can lead to quality issues and nutrient variations. Near-infrared spectroscopy (NIRS) has been successfully applied in Brazil to ensure feed quality standards at the farm level. 

Responsibility

Calcium and magnesium use in aquaculture

Aquatic plants and animals get the essential nutrients calcium and magnesium from water and food. Calcium concentrations impact the hydration and development of eggs in a hatchery, where calcium carbonate precipitation can be troublesome. 

Aquafeeds

Animal byproduct concentrates useful tools in formulation

With the market volatility of fishmeal, as well as rising sustainability concerns, the aquaculture industry is seeking sources of protein, such as animal byproduct concentrates, to substitute for fishmeal. 

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.