A commercial-scale shrimp feed trial demonstrated that soybean meal and corn gluten meal are effective protein alternatives to fishmeal in shrimp feeds.
Evolving vacuum coaters can apply coatings to feed with up to 40 percent oil levels. It may soon be used to reduce inclusion levels of fat- and water-soluble vitamins in feeds.
Hydrolyzed fish byproducts can serve as highly digestible feed ingredients with significant amounts of amino acids and fatty acids.
Antioxidants can be effective at controlling lipid oxidation in animal feeds and ingredients and should be added early in processing to limit free radicals.
Quick heating can reduce degradation of flavor and nutrient content in aquafeeds. Microwave dryers dry a range of products uniformly.
Palm distillate could be an effective substitute for fish oils in catfish diets. It is is a rich source of vitamin E and natural antioxidants.
Analytical procedures, like measuring water stability of shrimp feed, performed at labs provide more consistent and quantitative results.
While feed conversion ratios are often used as indexes of feed efficiency, they can be misleading as ecological indicators.
In a feeding trial, organic suspended solids loads for tray-fed shrimp were much lower than those generated by mechanical dispersion.