Tag - biological product

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) [...]


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 [...]


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 [...]


Aquamimicry: A revolutionary concept for shrimp farming

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View of a grow-out shrimp pond implementing the Aquamimicry production approach. Technology has been met with success worldwide by balancing natural plankton. The prevalence of numerous diseases that affect the shrimp and prawn aquaculture industry has promoted the development of various health management strategies. Some include greater biosecurity and sourcing of specific pathogen free animals, and in more extreme cases, using chemicals and antibiotics. However, because of the nature of open pond aquaculture, where most farmed shrimp is produced globally, it is [...]


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 [...]


India: Central Institute of Brackishwater Aquaculture Makes Shrimp Feed

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Researchers at the Central Institute of Brackishwater Aquaculture (CIBA) in Chennai, Tamil Nadu, have developed a new feed for India’s multi-billion dollar shrimp farming industry, which currently gets its feeds from foreign companies.  Branded as “Vannamei Plus”, the Indian-made feed is cheaper than the foreign feeds and produces just as much shrimp per hectare.  Three medium-scale feed mills have already been built to produce the new feed. CIBA director Dr. K.K. Vijayan said that feed represents 60 percent of production [...]


Functional feeds and aquaculture nutrition: building a concept

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A relevant challenge in shrimp nutrition within the following years, as stated by Tacon et al., (2000), will be the necessity for the research on the additional nutritional requirements for shrimp reproduction and shrimp optimal health and resistance to diseases. However, this author does not include the research and the use of functional feeds as a future challenge in the nutrition of the culture marine aquatic species. Though research in the nutrition of marine cultures is largely currently based on [...]


Functional Feeds as Feed Additives

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A feed additive can be defined as: a pure substance or a mixture of substances that is intentionally added to feeds and exert a single or several different specific functions; includes all nutritive or not, inert or active, natural or synthetic chemical compounds. Main feed additives used in the shrimp nutrition have traditionally included: antibiotics, probiotics, nutrients, pigments, enzymes, preservatives, antioxidants, attractants and appetite stimulants. Particularly of relevant importance, some feed additives have been characterized that stimulate the speed of [...]


Farming of the Pacific white shrimp, Litopenaeus vannamei in India

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Production and economics The average productivity of L. vannamei in India during 2013 is 6.49 MT/ha/year compared to 10.3 MT during 2011. Earlier, farmers were eager to stock more (60 – 80/m2), which resulted in overproduction by a fall pricing. Farmers also faced some production problems. Thus ultimately could have led the stakeholders to resort stock reducing densities that resulted in reduced productivity during 2013. The average cost of production works out around RS 190 – 200/kg for 40 count L. vannamei producing. Pond preparation The [...]


The Benefits of Shrimp Nurseries

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Over the last six years, nursery systems have evolved rapidly in Latin America.  Now, the culture period in nurseries is longer, the biomass is larger and the transfer systems and water control systems (zero exchange) are better.  Feeds and probiotics have also been improved.  The target is to produce stronger postlarvae that have been acclimated to the pond environment.  This results in better survival during the first days of culture and minimizes exposure to disease vectors. Since the causative agent [...]