Fishmeal, fish oil not limiting factors for aquaculture
The amount of fishmeal and fish oil used in aquaculture has remained static, while output from aquaculture has increased.
Whole genome sequencing of aquaculture species
A whole genome sequence allows the identification of candidate genes responsible for production and performance traits for a given species. Ongoing genome projects include programs for Atlantic salmon, Atlantic cod, Pacific oysters, tilapia, catfish and shrimp.
Bacterial testing improves biosecurity at marine hatchery
Microbial surveys of hatchery operations at Oceanic Institute found a strong correlation between hatchery success and cultivable bacteria levels in the water supplied to the larval-rearing systems.
Genetics, environment define crustacean color
Coloration in crustaceans is affected by a combination of factors: diet, environment and genetics. The genes required for coloration are not present in any other animal, but crustaceans use them to create a variety of colors and shell patterns.
Spiny lobster aquaculture
Spiny lobsters have a long, complex life cycle. Growing them through larval stages is a particular challenge. Spiny lobster culture is currently centered in Vietnam, where the industry depends on wild-caught animals for stocking and trash fish for feeding.
Lab evaluation methods quantify probiotic benefits
Due to the inherent complexities of field testing, definitive laboratory-based test methods can better quantify probiotic benefits.
Antimicrobial resistance: Aquaculture to humans, humans to aquaculture?
The transfer of resistance from an aquaculture pathogen into a human enteric bacterium has been demonstrated in research and may be happening in the real-world environment.
Fatty acids in feeds improve growth, lipid profiles of white shrimp farmed at high salinity
A study showed that lipid source and DHA and EPA levels in feeds can influence the growth performance and tail fatty acid profiles of L. vannamei farmed under hypersaline conditions.
Study identifies white spot variants in Sinaloa, Mexico
Mexico's government, shrimp industry and academic community are working to develop strategies to attenuate the effects of white spot virus in Sinaloa. They confirmed eight genotypes.
Flaws in reporting antimicrobial resistance
Improving the methodology of antimicrobial resistance testing and related controls, and the implementation of laboratory ring tests could lead to more reliable information.
Proactive disease management counters ISA, IMN
Although many companies avoid the costs associated with setting up proactive disease management infrastructure, failure to do so can result in losses that far outweigh the costs.
Vibrio contamination in raw oysters controlled by post-harvest treatments
The levels of harmful Vibrio bacteria – a pathogen that multiplies at higher temperatures – in raw oysters depend largely on post-harvest handling.
Out-of-season spawning for pike perch
The authors induced out-of-season spawning in pike perch reared under natural and artificial temperature and illumination regimes.
Aquaculture in Armenia
Fish farms in Armenia have developed a diversified product base that includes value-added, ready-to-eat foods for export, as well as live and processed fish for domestic markets.
Testing may help increase IHHNV tolerance in Pacific white shrimp
The authors conducted a study to investigate the prevalence of IHHNV in P. vannamei within the context of a family-based genetic selection program.
Delousing salmon in large net pens
In research for Norway’s salmon farmers, the authors documented effective bath treatments against sea lice infestations in large net pens using skirts or tarpaulins to define the treatment area.