A study of Zoea-2 Syndrome in hatcheries in India, part 2
Indian shrimp hatcheries have experienced larval mortality in the zoea-2 stage, with molt deterioration and resulting in heavy mortality. Authors considered biotic and abiotic factors. Part 2 describes results of their study.
Evaluating dietary fish oil replacement in juvenile Florida pompano
Study evaluated production performance and tissue composition of juvenile Florida pompano fed diets containing fish oil or 25:75 blends of fish oil and various other lipid sources.
The history and future of the Aquaculture Pathology Laboratory
The University of Arizona’s Aquaculture Pathology Laboratory has significantly contributed to the expansion of the shrimp farming for three decades.
Animal health giants have sea lice in their crosshairs
Alltech and Benchmark have been working on the next generation of sea lice solutions and believe they have new products that can help salmon farmers win.
Endangered totoaba has aquaculture potential in Mexico
Totoaba, a large, fast-growing fish of the Gulf of California, became endangered due to overfishing. The Mexican government therefore created an aquaculture program in Baja California to support restocking for the recovery of wild totoaba stocks.
Low volume, high density: Milkfish demonstration project
A demonstration conducted at a milkfish farm in southern Philippines by the United States Soybean Export Council Soy-In-Aquaculture program highlighted the use of extruded floating feeds with satiation feeding management and principles of low-volume, high-density cage production.
Updates on shrimp diseases AHPND, NHP at Aquaculture America 2018
Several shrimp-disease papers were presented at Aquaculture America 2018, including one on the detection of AHPND at a site in the United States.
Feed additives based on quorum sensing disruption could aid fight against EMS
The pathogenicity of early mortality syndrome in shrimp is likely regulated by quorum sensing, which allows the Vibrio bacteria that colonize shrimp guts to coordinate the release of the toxin that damages shrimp digestive systems.
Offshore aquaculture inches closer to reality in the Gulf of Mexico
New U.S. policies for offshore aquaculture permitting will soon be put to the test in the Gulf of Mexico. With imported products dominating the U.S. seafood landscape, some argue the time has come for the industry to take a leap forward.
Location matters most for newest Maine RAS venture
A leader at one of the new Maine RAS ventures talks ambitions for his group and the growing land-based aquaculture industry, with his home state at the epicenter of North American operations.
Flatfish conditioning for stock enhancement
Acclimation cages, the most implemented conditioning strategy for flatfish, are inexpensive and effective, but require site-specific adjustment. Live or lifelike diets show great potential in rearing stocked flatfish.
Genomic IHHN-related DNA sequences in black tiger shrimp
Polymerase chain reaction (PCR) testing demonstrated that Penaeus monodon offspring derived from founder shrimp collected from the Indo-Pacific region had genomic infectious hypodermal and hematopoietic necrosis-related DNA sequences that reacted with OIE-listed IHHN virus diagnostic primers.
Oligosaccharide levels in soy meals don’t affect channel catfish performance
A laboratory study compared conventional soybean meal (CSBM) and low-oligosaccharide soybean meal (LOSBM) as the main protein sources in 28 percent or 32 percent protein diets for channel catfish.
Alternative feed ingredients support continued aquaculture expansion
Identifying sources for essential macro- and micronutrients is important, as well as understanding how best to manufacture feed to required physical specifications when using these new raw materials.
Essential oils enhance fillet composition of channel catfish
Lab studies with channel catfish and rainbow trout have found that phytogenic feed additives like essential oils can help improve weight gain, feed conversion and immunity to disease.
Appraising pond liners for shrimp culture
The use of plastic-lined ponds by shrimp farmers can significantly improve production efficiency, support more production cycles per year, and higher mechanical aeration rates and stocking densities. The capital cost of lining ponds can be very significant, so a thorough feasibility analysis is recommended when considering this production tool.
Land-use efficiency study puts aquaculture on a pedestal
Focused on land-use implications of terrestrial meat production, the study concluded that aquaculture can meet the protein demands of a growing global population without adding strain on arable land, water or our other natural resources.
Rectangular airlift pump design outperforms cylindrical units
A rectangular airlift can be compact and more space efficient than airlifts made with multiple cylinders as they can generate much higher water volume outputs.