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Mycotoxins and their Economic Impact on Aquaculture
The use of plant-based proteins as alternatives to fishmeal raises the risk of mycotoxin exposure, with possible repercussions on the bottomline, writes Rui Gonçalves, MSc & Paula Kovalsky, PhD....
Development of Duplex real-time PCR for the Detection of WSSV and PstDV1 in Cultivated Shrimp
The White spot syndrome virus (WSSV) and Penaeus stylirostris penstyldensovirus 1 (previously named Infectious hypodermal and hematopoietic necrosis virus-IHHNV) are two of the most important viral pathogens of penaeid shrimp. Carlos A G Leal, Federal...
Fish Nutrition, Aquafeeds and Companion Animal Nutrition in Ontario: Building on Half a Century of Tradition and Cutting-Edge R&D
Over the past 50 years, the University of Guelph has gained an enviable reputation, nationally and internationally, for its innovative research programs in aquaculture nutrition and expertise in aquaculture feed formulation. The history of fish nutrition...
Reducing Cannibalism Among Newly Hatched African Catfish Fry by Grading
Research by A. M. Abdelhamid and Ahmed Ismail Mehrim, Al-Mansoura University and I.A.Radwan and A.F.Abdelhamid, Al-Hamoul Fish Hatchery looks at the possibility of reducing cannibalism among newly hatched catfish (Clarias gariepinus) fry by grading....
Bacterial languages: Communication and Coordination?
Several decades ago bacteria were primarily considered as separate entities of unicellular organisms that do not interact with each other. However, this view has changed and many bacterial species are now known to coordinate behaviour at a multicellular...
White Feces Syndrome of Shrimp Arises from Transformation, Sloughing and Aggregation of Hepatopancreatic Microvilli into Vermiform Bodies Superficially Resembling Gregarines
Accompanying acute hepatopancreatic necrosis disease (AHPND) in cultivated Asian shrimp has been an increasing prevalence of vermiform, gregarine-like bodies within the shrimp hepatopancreas (HP) and midgut. In high quantity they result in white fecal...
Probiotics: An Essential Tool in Intensive Shrimp Aquaculture
As aquaculture develops, the industry faces several challenges related to its environmental impact. The application of beneficial bacteria (probiotics) is not only associated with gut health (feed probiotics), but also with bioremediation that improves...
Biomin Supporting the Thai Shrimp Industry
Since the last decade Thailand has been the world’s leading shrimp exporter with annual foreign exchange earnings of more than US$3 billion. In 2010, Thailand produced 600,000 tonnes of marine shrimp. The strong growth observed in the industry in the...
Visual Thresholds for Feeding and Optimum Light Intensity for Larval Rearing of Asian Seabass
This study by Yukinori Mukai, International Islamic University Malaysia, and Leong Seng Lim, University Malaysia Sabah, examined the retinomotor responses and prey ingestion rates of 10-, 15-, 20- and 30-day-old Asian seabass Lates calcarifer under different...
The Interaction Between Water Currents and Salmon Swimming Behaviour in Sea Cages
Positioning of sea cages at sites with high water current velocities expose the fish to a largely unknown environmental challenge. In this study David Johansson et al, Institute of Marine Research, Norway, observed the swimming behaviour of Atlantic salmon...
Sociality Modulates the Effects of Ethanol in Zebra Fish
New findings published by researchers at the New York University Polytechnic School of Engineering are helping to unravel the complex interplay between alcohol and social behavior and may lead to new therapies for mitigating the negative impacts of alcohol...
Inbreeding and Disease in Tropical Shrimp Aquaculture: A Reappraisal and Caution
The disease crisis facing shrimp aquaculture may be propelled, in part, by an interaction between management practices that cause inbreeding, and the amplification by inbreeding of susceptibility to disease and environmental stresses. This study by Roger...
Effect of Incorporating “OXYDOL®” in White Shrimp Farming Ponds Over Production and Physical-Chemical Parameters
Marcelo Atehortua Herrera , Zootechnical Veterinarian Doctor (BIOPHARM S.A. ) looks at the effect of incorporating “OXYDOL®” in white shrimp farming ponds (Litopenaeus vannamei) over production and physical-chemical parameters....
The Physical Condition and Welfare of Five Species of Wild-caught Wrasse Stocked under Aquaculture Conditions and when Stocked in Atlantic Salmon Production Cages
Several indices were examined to assess the physical condition of wrasse stocked on Atlantic salmon, Salmo salar, farms as cleaner fish, and included examination of eye condition, snout erosion, skin hemorrhaging, and erosion and splitting of dorsal,...
Vibrio splendidus, Vibrio ichthyoenteri and Vibrio pacinii Isolated from the Digestive Tract Microflora of Larval Ballan Wrasse and Goldsinny Wrasse
One of the most difficult problems in Atlantic salmon aquaculture has been to control sea lice (Lepeophtheirus salmonis and Caligus elongatus in the Northern Hemisphere and Caligus rogercresseyi in Chile), which may cause serious harm to aquaculture reared...
 
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