Alfalfa concentrate: natural shrimp color enhancer
Adding alfalfa concentrate containing natural carotenoids and pigments to the finishing diets of shrimp can enhance coloration of shrimp after cooking.
Sulfur amino acid utilization in aquaculture
Dietary sulfur amino acids (methionine and cysteine) are required to support optimal growth, feed efficiency, and nutrient utilization in various fish.
Rockfish a potential culture species in U.S. Northwest
Rockfish aquaculture could potentially benefit wild stock-rebuilding efforts, as well as provide flavorful fish for consumers in the United States.
Development of tetraploid rainbow trout may yield improved triploid production
The culture of sterile triploid rainbow trout, which carry three sets of chromosomes, can limit losses to sexual maturation and reduce potential problems regarding interactions of escaped fish with natural stocks. The authors’ research holds promise for creating tetraploid rainbow trout strains that can be crossed with diploid trout to yield triploids for aquaculture production.
Off-flavors in channel catfish managed with low-dose applications of copper sulfate
Off-flavors in farmed fish cost the U.S. catfish industry millions but their prevalence can be greatly reduced by copper sulfate treatment of pond water.
Seafood-associated mycobacterial infections
Mycobacterial infections can happen to aquaculture workers and others who handle seafood or animals in aquatic ecosystems.
Transgenic improvement: Salmon, trout technology awaits regulatory approval
Transgenic salmon and trout developed by AquaBounty Technologies are minimally different from other farm-raised fish, but exhibit impressive and inheritable growth rates.
High water temperature affects WSSV management
In a study, results showed that raising water temperature to 33 degrees-C after inoculation was sufficient to prevent shrimp mortality from WSSV.
Dangers of viral pathogens in translocated shrimp, Part 2
International Council for the Exploration of the Seas (ICES) guidelines should be modified and closely followed to guard against the possibility of introducing new viral pathogens.
Phytase supplementation in aquaculture diets improves fish, shrimp growth performance
Despite research challenges, ongoing work on phytase supplementation in shrimp is striving to enhance shrimp feed performance in similar ways.
Parasite management important to future cod aquaculture in Scotland
Parasite management is crucial for cod farming in Scotland. The main threat comes from parasites with direct or single-host life cycles.
In vivo titration of white spot syndrome virus
Using intramuscular injection of white spot syndrome virus, study determines number of viral particles associated with the infectious dose.
Dangers of viral pathogens in translocated shrimp, Part 1
Translocated shrimp have the potential to carry pathogens to new areas. Shrimp have a tendency to carry persistent infections without showing signs of disease.
Live diets for pacu larvae tested in Peru
Study in Peru that evaluated three food sources for larval pacu shows that water fleas appear to be a cost-effective substitute for artemia.
Prototype stunner tested on rainbow trout
Research at the Conservation Fund’s Freshwater Institute is evaluating a prototype percussive stunning system for slaughtering food-size rainbow trout.
Feed quilting testing: Measuring in vivo, in vitro digestibility
In vitro pH-stat determination of digestibility is a promising technique for quick assessment of nutritional value and potential negative effects.