Investing in the quality of shrimp postlarvae by applying state-of-the-art hatchery management results in a significant return on investment. Nutrition and health protocols have large impacts on postlarvae quality that last beyond the early life stages.
Easily digested, live artemia offer important animal health benefits and improved performance when included in feeding regimes for larval shrimp. Pilot and commercial-scale trials have confirmed that artemia can be partially replaced in shrimp feeding.
At shrimp hatcheries, artemia replacement diets are used to replace live artemia, but complete replacement in commercial conditions remains a challenge.
As the industry moves toward the use of domesticated stocks, greater demands will be made on larval shrimp nutrition to support optimum performance.
Research into broodstock shrimp nutrition will be a key element in the further use of domesticated and genetically selected stocks for aquaculture.
A shrimp diet developed in trials is the first dry nursery diet shown to ensure good performance at stocking densities up to 45,000 per square meter.
In a study at the University of Wales in the United Kingdom, a larval shrimp diet that included fresh marine ingredients was compared with a control diet.
Shrimp postlarvae diets can be fed entirely artificial, but the best growth rates are obtained when feeds include artemia or enriched artemia.