Tag - disease

Probiotics in Shrimp Aquaculture

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Shrimp ranks as the most favorite seafood among US consumers, and more than half of the shrimp in the market are coming from aquaculture. After decades of impressive growth, global shrimp aquaculture production in 2012 reached 3.78 million tons. However, catastrophic disease outbreaks have hindered the growing pace of the shrimp industry from time to time and caused tremendous economic loss, in billions of USD$ collectively. The most recent disease problem was the outbreak of the Early Mortality Syndrome (EMS) [...]

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Ecuadorian shrimp farming: A success story

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Located between Colombia and Peru on the Pacific cost of the South American continent, Ecuador is a small Latin American country, with only 277,000 square kilometers of land and 2,200 km of coastline. Nevertheless, Ecuador is one of the world’s major players in farmed shrimp production, especially if we look at the shrimp production ratios relative to the land surface or to the length of coastline of the considered countries. Shrimp farming in Ecuador started in 1969 with the extensive [...]

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Asian shrimp prices, production on the move in line with rising demand

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Overall, shrimp production in Asia will increase by 5 to 10 percent this year compared to 2016, but there will continue to be some important anomalies in key production regions, anticipates Jim Gulkin, managing director of the Bangkok-based Siam Canadian Group. Thailand’s production is up this year, with Gulkin telling SeafoodSource that he expects an increase of between 10 to 15 percent over last year. But he added that the competition for raw material between processors is very strong, with [...]

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The World Production of Farmed Shrimp Stagnates in 2016

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During the first nine months of 2016, lower international prices and outbreaks of disease in some of the leading producing countries meant that global production of farmed shrimp remained stagnant, or even fell, compared to the same period in 2015. According to FAO’s latest Globefish report, published on April 11, 2017, the main season for farmed shrimp in Asia ended in November with an overall sluggish trend in production.  This went against the earlier forecast of increased production in 2016. Preliminary [...]

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Selection for disease resistance in Indian white shrimp

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The Indian white shrimp (Fenneropenaeus indicus) is an important species in the aquaculture industry of Egypt, and it has been negatively affected by various major diseases. Several selective breeding programs for farmed shrimp have succeeded elsewhere in improving disease resistance against specific pathogens, indicating that genetic improvement in resistance to several diseases is feasible. However, for optimal implementation of selection for improved disease resistance in a breeding program, it is critical to investigate if significant genetic correlations exist between disease [...]

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Global shrimp survey goal 2016

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Asia production Shrimp production grew steadily in east Asia through 2011, averaging 6 percent annual growth from 2008 to 2011. The GOAL surveys indicate that production declined from 3.45 MMT to 3.25 MMT in 2012 (down 5.8 percent) and 3.21 MMT in 2013 (down 1.1 percent) due to the impact of EMS in China, Thailand, Vietnam and Malaysia (Fig. 2). Production increased substantially in 2014 to 3.49 MMT (up 8.5 percent) mostly due to the larger harvests reported in China, [...]

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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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Dietary organic acids used as growth promoters anti-microbials

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Disease is a major limiting factor to aquaculture expansion and productivity. Of particular concern to tilapia aquaculture are bacterial diseases caused by the Streptococcal groups, such as Streptococcus agalactiae, which can cause widespread mortalities, particularly in warm water and high intensive culture systems in various countrieS. Antibiotics such as oxytetracycline (OTC) are still being used as the most common treatment and/or prophylactic against bacterial diseases, including Streptococcus, in many sectors of the aquaculture industry. However, as the global trend in antibiotic use becomes [...]

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Shrimp farming experience: Disease prevention or treatment?

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Shrimp is a lower animal without specific immune system. Thus, its ability to resist pathogens is poor. There is currently no vaccine for disease prevention in shrimp. Weak shrimp is easily susceptible to virus (e.g., white spot, Taura syndrome) and bacteria (e.g., Vibrio). If shrimp has serious disease, farmers have to not only deal with reduced yield, even face lost, but also pay for the expensive cost of pond treatment. Shrimp body temperature varies based on temperature of the surrounding [...]

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Prebiotics, Probiotics Provide Alternatives To Antibiotics

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Summary: Although reports vary, scientific literature indicates prebiotics, probiotics and synbiotics have use in aquaculture as alternatives to antibiotics. Channel catfish that received the prebiotic MOS had improved survival after bacterial challenge. Probiotics have been shown to protect against bacterial infections in rainbow trout and improve survival in catfish. Synbiotics also have potential for manipulating the microflora of the gut and improving growth and disease resistance in fish. As aquaculture continues to expand, pressures to find alternatives to medicinal disease [...]

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