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Aquaculture health
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There is a need to increase biosecurity measures in the shrimp aquaculture industry as part of the 'new normal'. It is not a secret that the shrimp industry in many countries has suffered considerable economic losses due to a number of different shrimp diseases including the acute hepatopancreatic necrosis disease (AHPND). According to OIE, AHPND has been officially reported in China (2010), Vietnam (2010), Malaysia (2011), Thailand (2012), Mexico (2013) and the...
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Introduction Global aquaculture production has been steadily increasing over the last decade. Asian countries like Taiwan, Indonesia, Thailand and India have emerged as global leaders in shrimp production. In order to bridge the gap between world demand and supply of shrimp, many...
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Solution for Zoea 2 problems in Vannamei hatcheries ...
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INTRODUCTION Dietary mycotoxin contamination is an area of great concern for different organisms ( Abdelhamid, 2019a & b ). It negatively affects the immune system, gut development ( Mass, 2018 ), digestion and performance ( Abdelhamid et al ., 1992 ), and may lead to death ( Abdelhamid et al ., 2006 ); so, leads to economic loss ( Abdelhamid, 2000; 2004 and 2009 )....
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According the Food and Agriculture Organization - FAO report (2018), of the 171 million tonnes of total fish production in 2016, approximately 88 percent (over 151 million tonnes) was used for direct human consumption, a share that has increased significantly in recent decades. Therefore, to meet the growing demand for fish, fish nutrition and health will play an increasingly important role in the global food Industry. Intensive fish and shrimp farms are...
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Commercial breeding of fish as a source of protein generates a significant amount of business around the globe. As many species are highly sensitive to fluctuations in water temperature, pH, and levels of oxygen and nitrogen, the chemical and biological environment of aquaculture systems must be closely monitored and maintained (Mumpton, 1985). The natural absorption and adsorption capabilities of zeolite make it the perfect candidate to promote the ongoing health and sustainability of...
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1. Introduction Aquaculture contributes about 74% of the total fish production in Egypt [1]. Egypt is an arid country that has a negative water balance. Its annual water supply from the Nile, rainfall along the Mediterranean coast and deep groundwater amount to approximately 57.7 billion cubic meters (BCM). But each year, the farms, industries, and people use around 72.4 BCM [2]. The reuse of drainage water is one of the main reasons why Egyptians can use a larger amount of...
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The Vibrio bacteria in shrimp: how a common pathogen in shrimp farming became the leading character in the EMS story. During the past year, evidence has accumulated on how the ongoing outbreak of early mortality syndrome (EMS) or more precisely acute hepatopancreatic necrosis disease (AHPND) is caused by a specific strain of the Vibrio parahaemolyticus bacteria. That this newly emerged disease is caused by a well-studied...
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Philippe TACON, Regional Sales & Technical Manager, South-East Asia for Phileo Lesaffre, speaks about the problems and challenges that companies face in that region, and how Phileo can help the producers to solve some problem with innovative products in aquaculture....
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Karl Andree, IRTA researcher, for the ITACA project demostrates a necropsy on a tilapia for health examination...
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First published at the 18th ISFNF conference (International Symposium on Fish Nutrition and Feeding), in Las Palmas de Gran Canaria, Spain, from 3rd to 7th June...
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Over the last years the Swiss Feed Additives manufacturer Pancosma has constantly invested into natural solutions aiming at supporting aquaculture efficiency and sustainability. In a global context of expansion, both fish farming and shrimp productions are facing new challenges among which animal health...
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For a long time, the most common method for dealing with the occurrence of bacterial infections in aquaculture was the administration of antibiotics. However, aquaculture faces serious problems due to various adverse effects of these drugs such as accumulation in the tissue and environmental microbial flora. Moreover, to use antibiotic or vaccine for fish is expensive and in many farms its use is unavailable (Yousefian and Amiri, 2009). Thus, the use of substances or additives incorporated...
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Introduction Ozone (O 3 ) is a three-atom allotrope of oxygen held together by unstable bonds. A single oxygen atom breaks away easily and reacts with most of the organic and inorganic molecules that it contacts (Lawson 1995). This makes ozone a powerful oxidizing agent, reacting directly and indirectly with other compounds. Indirect reactions occur when ozone decomposes into radicals and these react with other...
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1. Introduction Grouper is an economically important fish species for aquaculture in Southeast Asian countries. Due to the intensive culture, groupers have been suffering from not only viral but also bacterial diseases, such as vibriosis, resulting in serious economic loss. Vibriosis is also known as fatal hemorrhagic septicemia, and the causative agents of vibriosis belong to the genus Vibrio, such as Vibrio alginolyticus, Vibrio harveyi, and Vibrio anguillarum. The...
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Brown blood disease occurs in fish when water contains high nitrite concentrations. Nitrite enters a fish culture system after feed is digested by fish and the excess nitrogen is converted into ammonia, which is then excreted as waste into the water. Total ammonia nitrogen (TAN; NH3 and NH4+) is then converted to nitrite (NO2) that, under normal conditions, is quickly converted to nontoxic nitrate (NO3) by naturally occurring bacteria. Uneaten (wasted) feed and other organic...
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For a long time, the most common method for dealing with the occurrence of bacterial infections in aquaculture was the administration of antibiotics. However, aquaculture faces serious problems due to various adverse effects of these drugs such as accumulation in the tissue and resistance in environmental microbial flora. On the other hand, to use antibiotic or vaccine for fish is expensive and in many farms unavailable (Yousefian and Amiri, 2009), however, the use of substances or nutrients...
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Phytoplankton are the key food item in both aquaculture and mariculture. Both systems are utilizing phytoplankton as food for the animals being farmed. In aquaculture, phytoplankton must be obtained and developed artificially through various adapted procedures. The plankton population in form of desirable bloom undertaken throughout the culture period as part of best pond management practice. Phytoplankton is used as a food stock for the production of zooplankton...
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Introduction Aquaculture is the fastest growing sector of food production, comprising almost 50 % of fish aimed at human consumption worldwide. It is estimated that aquaculture production should be two and a half order of magnitude by 2030 to keep up current levels of per capita consumption. Aquatic animals such as finfish, crustaceans and molluscs are particularly susceptible to a broad range of...
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