A recent study evaluated the effects of a fishmeal-free diet on Atlantic salmon performance and fillet quality during successful growout to market-size in a commercial-scale, land-based, closed-containment system using water recirculation technology. Test fish performed well, with 97 percent survival
The U.S. Soybean Export Council is a huge supporter of aquaculture growth globally, as so many aquafeed formulators rely on U.S. soy to create nutritious diets. The Southeast Asia senior technical advisor for USSEC’s aquaculture program talks about this symbiotic
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.
Various additives, many of plant origin, have been explored to replace the use of antibiotics in aquafeed. The authors compared the performance of rainbow trout fed diets containing oxytetracycline or mineral additives yellow loess and Song-Gang stone powder.
The digestive systems of shrimp are main entry points for bacterial and viral pathogens, and unfavorable microflora. Natural feed additives that combine different actions have proven effective in improving survival where shrimp are exposed to bacterial pathogens.
A growth trial using hatchery-reared grouper was carried out to study the effects of stocking density on feed intake and subsequent growth. Contrary to common perceptions, fish stocked at the highest density had higher feed intake and body weights.
Poor-quality ingredients can’t become good-quality ingredients. Quality protein is essential for the healthy growth of any omnivorous or carnivorous aquaculture species. Insect meals seem to fill this need, and their mass-scale production appears to be sustainable.
A study found that feed for salmon and trout had higher organic carbon concentrations than did catfish, shrimp and tilapia feeds. Nitrogen and phosphorus concentrations were similar among salmon, trout and shrimp feeds, and higher than those in catfish and
Continuous improvement is a critical strategy required for the success of any business, including shrimp farming. Routine programs for farm feed trials that incorporate best practices can contribute to better decision making and a faster improvement.