Antinutritional factors limit use of plant feedstuffs
Antinutritional factors within plant feedstuffs is a major factor that limits plant use at high dietary inclusion levels in aquafeeds.
A comparison of U.S. shrimp grow-out diets
There is limited information on the quality characteristics and performance of shrimp grow-out diets manufactured in the United States.
Pelleting process, Part 2
In the crumbling process of pelleting, whole pellets are crushed to produce starter diets used to feed different stages of shrimp in their early development.
Shrimp postlarvae diets: New technology for flake manufacturing
Shrimp postlarvae diets can be fed entirely artificial, but the best growth rates are obtained when feeds include artemia or enriched artemia.
Water stability, texture of shrimp feeds formulated with natural, synthetic binders
Synthetic and natural binders that provide increased water stability are often used without consideration of the final dry or wet pellet texture of the shrimp feed.
Physical qualities affect performance of shrimp feed
Formulated shrimp feed represents about 50 percent of production costs, but even more if the feed is wasted because of poor quality.
Pelleting process, Part 1
Select pelleting equipment that best fits plant layout from vendors that specialize in drying and cooling, rather than buying complete “packages” from one supplier.
Maturation diets for male shrimp: Fresh food vs. formulated feeds
Maturation diets for shrimp broodstock often include fresh food organisms like squid, bloodworms and fish, which is labor-intensive and involves quality and safety issues.
Fatty acid nutrition of juvenile Litopenaeus vannamei
Knowledge of the fatty acid nutrition requirements in Pacific white shrimp, an economically important penaeid for shrimp farming in the Americas, is limited.
Trials test cottonseed meal as soybean replacement in shrimp feed
Cottonseed meal is a lower-cost protein alternative to soybean meal, but its use in commercial shrimp feeds may be limited because it contains gossypol.
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.
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.
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.