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.
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.
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.
Effects of feed protein levels on redclaw production in Mexico
The redclaw, an Australian freshwater crayfish, is produced in Mexico using aquafeeds formulated for fish, penaeid shrimp and freshwater prawns.
Microdiets for red drum larvae
Formulated microdiets, which are easier to maintain and have a lower production cost than live prey, offer an alternative food source to rotifers and artemia.
Formulated diets: Replacement for live food in marine fish larvae
Creating formulated diets for fish larvae is difficult because estimating nutritional requirements cannot be done using traditional nutritional approaches.
IFOAM drafts basic standards for organic aquaculture production
No official data are available concerning the production of certified organic aquaculture products, but it is primarily from European countries.
Preconditioning shrimp feeds, Part 3
Aquaculture feed manufacturers in the Americas – with the exception of a few countries like Ecuador – have relied on short-term, single-pass conditioners.
Minimizing environmental impacts of shrimp feeds
The choice of shrimp feeds or feeding regimes can have a profound effect on the rearing conditions and health of the cultured species.
Preconditioning shrimp feeds, Part 2
The effects of long steam preconditioning times of up to 30 minutes on the water stability of shrimp feeds were evaluated in early research studies.