Farming technique – Page 14

Malaysia Shrimp Project Scales Up For Production In Biosecure Biofloc Modules

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Large-scale biosecure shrimp production in ponds utilizing biofloc systems is making advances in Malaysia. Summary: A large-scale integrated shrimp aquaculture park (iSHARP) project in Malaysia is approaching completion of its first phase. Biosecurity is a priority at iSHARP. The design of each unit allows individual modules or ponds to be “locked down” to prevent disease from spreading. Water is pumped through treatment ponds before entering growout ponds. Secured inlet and outlet gates prevent contamination between ponds and canals, and conserve treated water in the recirculating system. Effluent treatment involves four [...]

23 Apr

Ammonia Toxicity Degrades Animal Health, Growth

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Summary: Ammonia nitrogen occurs in aquaculture systems as a waste product of protein metabolism by aquatic animals and degradation of organic matter, or in nitrogen fertilizers. Exposure can reduce growth and increase susceptibility to diseases in aquatic species. Ammonia nitrogen concentrations vary with time of day, water depth and temperature, and increase as biomass and feed input increase. The best management is conservative stocking and feeding rates that minimize ammonia nitrogen and avoid excessive phytoplankton blooms that cause high pH. Claude [...]

23 Apr

Experimental method to detect the cause of EMS

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In early 2009, a new symptom appeared in both giant tiger shrimp and white shrimp, called early mortality syndrome (EMS), which caused major damage to shrimp farms in the south. China. In 2010, EMS appeared in many shrimp farming areas in southern Vietnam and spread to other countries such as Malaysia in 2011 and Thailand in 2012. In 2011, based on acute lesions of premature death syndrome, a new name was proposed as “Acute Hepatopancreatic Necrosis Syndrome” (AHPNS). By the [...]

4 Apr

Some success stories overcome EMS in Vietnam

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How some shrimp farms in Vietnam are overcoming the EMS in Vietnam. This year, it will be two years since early mortality syndrome/acute hepatopancreatic necrosis (EMS/AHPNS) was first reported in shrimp farms in Vietnam. It started in the Mekong Delta in farms culturing mainly the black tiger shrimp Penaeus monodon which contributed more than 60% of shrimp production in the country. EMS gradually spread to many farms all over the entire country, bringing fear among farmers in the country. Today, [...]

4 Apr

Importance and Optimizing Trace Minerals in Shrimp/Fish Nutrition for Development of Immunity

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Application of feeds in aquaculture can increase both production and profits considerable. Nutrition encompasses the chemical and physiological process which provides nutrients to an animal for normal function, increase in immunity, disease resistance, maintenance and growth. It involves ingestion, digestion, absorption and transport of nutrients and removal of waste. There are 20 recognized inorganic elements which perform essential functions in body. Some minerals are required in considerable quantities and termed Macro-elements while others which are required in lesser amounts [...]

4 Apr

Identification and Antimicrobial Resistance of Bacteria Isolated from Probiotic Products Used in Shrimp Farming

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This study was published in its entirety on-line by PLOS ONE, a peer-reviewed, open access (free) scientific journal published by the Public Library of Science (PLOS) under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited. Operating under a pay-to-publish model, all submissions go through a pre-publication review by a member of the board of academic editors, who can elect to seek [...]

4 Apr

Benefits of AquaVive and NutraPro in shrimp ponds

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All the efforts in synergistic usage of probiotics and prebiotics is related to these microbiological ecologies in the water, feces, organic wastes, sludge, sediments, shrimps gut and feed. Biofloc can be a novel strategy for disease management in contrast to conventional approaches such as antibiotic, antifungal, probiotic and prebiotic application. The “natural probiotic” effect in BFT could act internally and/or externally against, i.e., to Vibrio sp. and ectoparasites, respectively. This effect is promoted by large groups of microorganisms, but mainly bacteria that [...]

23 Mar

Organism Size and Behavior in Penaeus vannamei

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Feed In response to a discussion on The Shrimp List titled “Feed Organism Size and Behavior in P.v.,” Durwood Dugger, one of the pioneers of shrimp farming in the Western Hemisphere and owner of BioCepts International, an aquaculture consulting company that concentrates on shrimp and lobster farming, wrote: Here are a few of my observations on the feeding behavior of Penaeus vannamei: 1. In some old Purina nutrition studies, I watched 40-gram broodstock clear newly hatched Artemia nauplii out of 120 L [...]

19 Mar

The mixed feeding regime benefits Pacific shrimp

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Study finds continuous feeding with a high-protein diet is not as practical Cast netting of shrimps from the shrimp production pond of CFLRS-MSU for use in the study. Aquafeeds are the most important cost in fed fish and shrimp aquaculture operations, especially considering that – even under appropriate feeding management – about 70 to 95… See more at https://www.aquaculturealliance.org/advocate/mixed-feeding-schedules-benefit-growth-pacific-shrimp/?utm_source=Informz&utm_medium=email&utm_campaign=Informz+email

3 Mar