Tag - biosecurity

A progressive approach to shrimp health management

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How water quality management, low stocking densities and the use of specialised feeds can consign the use of antibiotics in shrimp farming to history. The 400-hectare Sanolmedo shrimp farm in Ecuador ha been antibiotic-free since its inception over a year ago. The farm, located at the end of a long jungle road in Taura, is Corporación Lanec’s newest and most ambitious project to date and a select group of delegates from the nearby GOAL conference were able to visit this week to find out [...]

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A look at various intensive shrimp farming systems in Asia

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Commercial implementation of biofloc and RAS production systems help control shrimp farming diseases Intensive shrimp farm in Bali, Indonesia producing shrimp in a biofloc system (Taw and Setio, 2014). Before the mid-1990s, the major diseases affecting the farmed shrimp industry were of bacterial origin. But in Asia and from late 1994, the appearance of various,… See more at https://www.aquaculturealliance.org/advocate/intensive-shrimp-farming-asia/

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Born in Hawaii, SPF broodstock shrimp industry faces globalization

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For two decades, Hawaii has led the way for Specific Pathogen Free shrimp and the growth of a multibillion-dollar industry The Oceanic Institute in Hawaii, on the shore in the distance, was one of the participating institutions in a USDA-funded consortium to breed specific pathogen free (SPF) broodstock shrimp for a growing aquaculture industry. See more at https://www.aquaculturealliance.org/advocate/spf-broodstock-shrimp/

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Shrimp Pond Waste Management – Approaches

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Increase in food production from fisheries sector led to introduction of noval technologies and intensive farming methods in shrimp culture that result in increased production of shrimp. Management of water and waste that produced is critical factor that has to be considered. In order to discharge waste water, some improved recirculating systems have been developed. But, the sludge has been neglected and posing a serious problem. So a systematic waste management strategy is needed which include treatment, disposal and [...]

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Aquaculture Europe 2016: Shrimp Disease Causes Millions in Losses Across Asia

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ASIA – Shrimp diseases such as white spot and AHPND have caused devastating losses for farmers across Asia in the last few years. Speaking at Aquaculture Europe 2016, 20-23 September, in Edinburgh Scotland, Dr Andy Shinn, Fish Vet Group, attempts to work out the true economic losses to farmers. Asia’s crustacean aquaculture is expected to exceed 5.08 million tons in 2016, an increase of 5.46 per cent. However, although there has been an increase in production, the level of growth [...]

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Thailand: The History of Shrimp Farming and the Factors That Led to Its Growth

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Using traditional extensive techniques in large (30 hectares or more), low-lying coastal paddy fields, the first shrimp farms in Thailand were probably started during the 1930s.  Because of the dependence on natural tidal flow for wild seed and naturally occurring food organisms, yields were usually low (approximately 200 kilograms per hectare per year–kg/ha/yr). Semi-intensive shrimp farming in Thailand started during the early 1970s and was replaced by intensive shrimp farming beginning in 1987.  Penaeus monodon was the favored species because [...]

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Bangladeshi shrimp farming gets app-savvy

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[DHAKA] Technology that uses Quick Reading Codes (QRC) — which work like universal bar codes — helps consumers of shrimps farmed in Bangladesh to trace the antecedents of what they are eating with a smartphone app. Introduced to the farmers in southern Bangladesh by the research organisation WorldFish to enhance the safety of shrimp production and to make its marketing transparent, the QRC can trace all shrimp right from the larva stage supplied to farmers. The QRC can be used in [...]

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Asia: Research – Review of Shrimp Diseases

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Abstract: This review summarizes recent information about new and newly emerging diseases of cultured shrimp in Asia and discusses the biosecurity lapses that led to the current shrimp production crisis.  All industry stakeholders must be aware of this situation and of the need for regional and global collaborative efforts to stem this crisis and prevent future development of another. In Asia, several shrimp diseases are new or newly emerged, including acute hepatopancreatic necrosis disease (AHPND), hepatopancreatic microsporidiosis (HPM), hepatopancreatic haplosporidiosis [...]

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Escape from EMS/AHPND at SGIC

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How this is achieved is through management of culture systems, biosecurity, avoiding use of chlorine for pond and reservoir water disinfection and thorough clean-up of hatchery. Dr Boonsirm Withyachumnarnkul at Centex Shrimp, Mahidol University said that with widespread destruction of crops with early mortality syndrome (EMS) in vannamei shrimp farming, some farms in Thailand have returned to farming the black tiger shrimp in 2013. The Shrimp Genetic Improvement Center (SGIC), Surat Thani, Thailand has largely escaped being infected with the bacteria causing [...]

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What do we know about EHP?

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• Tissue specific for HP unlike most other microsporidians which affect muscle • Transmitted orally between shrimp with no need for an intermediate vector very unusual and very worrisome • Very difficult to visualize with normal histology • Requires practice and patience • Once spores are in ponds very difficult to eradicate HP with EHP spores Control of EHP • Two fold approach to possible control – Broodstock carriers shed spores in feces which contaminate egg and nauplii surfaces. – Farmed animals shed spores into ponds which in [...]

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