Regular testing maximizes feed equipment performance
To produce a high-quality feed with specific nutritional and physical characteristics, feed equipment processes must often be modified and optimized.
The aquafeed pelleting process
When feed pellets exit the die of a pelleting mill, they are moved to a post-pellet cooker or post-conditioner, where they are allowed to set prior to cooling or drying.
Weaning marine fish from live to dry diets presents challenges
Successful weaning of marine fish larvae from live feeds onto dry diets is a demanding process that requires hard work, patience and experience.
Shrimp feeds and management: Golden rules for success
With decreasing prices and increasing raw-material costs, efforts to reduce shrimp feed costs and improve management top the agenda for most farmers.
Aquafeed pelleting mill construction
Pelleting mills, where finely ground and conditioned meal are mechanically pressed through a die, produce cost-effective, high-density, water-stable shrimp feeds.
Cholesterol: Indispensable but not irreplaceable in shrimp feeds
Penaeid shrimp are unable to bio-synthesize cholesterol, which is widely accepted as an essential nutrient for these crustaceans.
Feed supplementation with menhaden oil elevates omega-3 HUFAs in catfish fillets
Studies at the Thad Cochran National Warmwater Aquaculture Center show that adding menhaden oil to catfish diets can produce fillets with more omega-3s.
Palm oil: Alternative lipid source in aquaculture feeds
One potential substitute for fish oil in aquafeeds is palm oil, which is the second most abundant vegetable oil in the world.
Antinutrients in plant-derived fish feed ingredients
An important limiting factor to the inclusion of some vegetable ingredients in aquafeeds is the presence of toxic secondary compounds, or antinutrients, in the ingredients.
Feed study tests vegetable replacements for marine ingredients
Aquafeed study showed that an experimental diet with low levels of vegetable replacements for marine ingredients still produced acceptable results.
Nitrogen management for shrimp nutrition in low water-exchange production systems
Research in culture systems without water exchange indicates that dietary protein levels have great impact on dissolved inorganic nitrogen loading.
Research examines feeding regimes for freshwater prawns
U.S. commercial culture of freshwater prawns has increased thanks to added substrate, increased stocking densities and feed rates and size grading.
Growth trials replace fishmeal in red drum diets
Given the finite supply of fishmeal and other marine protein sources, alternative ingredients are needed to replace fishmeal for production diets for marine fish.
Preconditioning shrimp feeds, Part 4
Pressurized conditioners offer an alternative preconditioning technology to improve pellet quality, increase capacity and feed conversion and pasteurize feed.
Supplementing aquaculture diets with nucleotides
Nucleotides are basic building blocks of the nucleic acids DNA and RNA, and necessary elements in the their replication during cell division and renewal.
An evaluation of soybean meal quality
Soybean meal has the largest market share of all protein meals used in the production of single-stomach animals, and is a major component of aquafeeds.