Trial finds extruded feeds superior to steamed pellets
A feeding trial in Hawaii tested the nutritive value of extruded feeds in comparison pelleted feeds for Pacific white shrimp.
Fishmeal, fish oil replacements in sea bream, sea bass diets need nutritional compensation
Fishmeal and fish oil replacements present a challenge for the aquafeed industry. The range of alternative protein and fat sources is limited, given multiple considerations.
Microencapsulated, composite-wall diets compare well to commercial feeds for shrimp larvae
Diet microencapsulation using a biopolymer composite wall is a novel way to protect diet ingredients against deteriorative mechanisms such as oxidation and leaching.
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.
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.
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.