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.
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.
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.
Studies find aquaculture of marine invertebrates for anticancer compounds feasible
Aquaculture may deliver commerical quantities of the tiny sea creatures, Bugula neritina, that provide important anticancer compounds.
Sole larvae perform best on algae-and-rotifer diet
In a study, Senegal sole larvae had better survival when fed an initial diet of enriched rotifers with algae, rather than artemia alone.
Preventing melanosis in shrimp
The black spots of melanosis quickly arise in harvested shrimp from enzymatic reactions in shrimp tissue or external stressors.
Controlled cooking methods offer higher shrimp yields with product safety
Advances in equipment design keep pace to provide uniform, controlled cooking temperatures that allow more precise bacteria lethality with higher yields.
Polyculture studies with white, black tiger shrimp show promise in Indonesia
The Central Pertiwi Bahari farms in Indonesia found polyculture of white shrimp and black tiger shrimp at a density of 70 PLs per square meter promising.
Tilapia harvest microbial flocs in active suspension research pond
In a study, microbial flocs contributed about 50 percent of feed material as dry solids and about 50 percent of the protein requirement of tilapia.
Florida study achieves tank spawning of southern flounder
Southern flounder offer potential in aquaculture to answer declining fishery landings and increased demand, but insufficient fingerlings are available.
Australian research examines effects of hatchery cleaners, procedures on oyster embryos
A recent study showed the sensitivity of Sydney rock oyster embryos to small amounts of disinfectants and other substances commonly used in hatcheries.
Field diagnostic kits for aquaculture
New antibody-based diagnostic kits for aquaculture disease diagnosis are simple and fast, and high-sensitivity PCR testing is coming to the field, as well.
Advances in tank culture of sunshine bass fry
The successful development of efficient tank culture techniques for sunshine bass fry and fingerlings would help in the year-round production of fish of uniform size and quality.
P.L. size, source strong early measures of shrimp grow-out performance
Artificial diets are used to replace live artemia at commercial shrimp hatcheries, but complete replacement remains a challenge for strong grow-out results.