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Health : Fumonisins - mycotoxins of increasing importance in fish!
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| Posted on 5/8/2009 (2404 reads) |
Griessler, K. and Encarnação, P.
Fumonisins are a group of recently discovered mycotoxins which belong to the family of Fusarium toxins. The contamination of feedstuffs with mycotoxins poses a serious threat to the health and productivity of animals and cause great economic losses. In the USA, the annual losses caused by mycotoxins in grain production are estimated at 900 million dollars1. Dependent on type of animal, sex, age as well as the nutritional and health condition of the animal, fumonisins cause different clinical symptoms. Additionally, the occurrence of several mycotoxins in feed is very likely and can amplify the toxic effects of the individual toxin (synergistic effect). Right: Figure 1: Fusarium proliferatum contaminated maize (Source: Chamber of Agriculture, Styria, Austria). |
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Health : National strategies for aquatic animal health management
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| Posted on 10/2/2009 (5139 reads) |
 By C.V. Mohan, NACA
Rapidly developing aquaculture and ever expanding global trade, in the era of globalization and trade liberalisation, presents several challenges. One of the key problems is the emergence and spread of serious aquatic animal pathogens. Intensive aquaculture practices tend to provide a platform for the emergence of pathogens, while global trade in aquatic animals and their products offer avenues for trans-boundary spread of pathogens. The risk of pathogen transfer is generally considered greater for movement of live aquatic animals than for movement of dead product. Irrespective of the disease risks involved, aquaculture and global trade will continue to intensify and expand. |
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Health : Nodavirus: An emerging threat to freshwater prawn farming
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| Posted on 2/2/2009 (6456 reads) |
By Biju Sam Kamalam, J., Saravanan, S and Ajith Stalin, J.L.
The giant freshwater prawn, Macrobrachium rosenbergii is a native inhabitant of sub-tropical and tropical waters. It is commercially important and one of the most cultured prawn species in Southeast Asia, as well as Israel, Japan, Taiwan Province of China, Latin America, the Caribbean and some countries in Africa due to its potential of fast growth, large size, disease tolerance and export market value [1]. Increasing demand for this species in both the domestic and export markets has led to a remarkable increase in the number of large scale culture systems with high stocking density and intensive feeding [2]. With the rapid development in hatchery production of post-larvae and the number of prawn grow-out farms, good husbandry and environmental management have often been neglected. Consequently, pathogens gain easy entry as the prawns are stressed and weakened under adverse environmental conditions [3]. Photo: Normal (left) and infected (right) Macrobrachium rosenbergii. |
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Health : Seventh Meeting of the Asia Regional Advisory Group on Aquatic Animal Health
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| Posted on 19/12/2008 (5502 reads) |
The seventh meeting of the Asia Regional Advisory Group (AG) on Aquatic Animal Health (AGM-7) was held on 15-17 December 2008 at NACA Secretariat in Bangkok, Thailand.
The meeting, attended by 10 Advisory Group members and two additional co-opted members, addressed key aquatic animal health issues in Asia, including: |
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Health : OIE/NACA Regional Workshop on Aquatic Animal Health
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| Posted on 27/3/2008 (3857 reads) |
The OIE/NACA Regional Workshop on Aquatic Animal Health organised by the World Organisation for Animal Health (OIE) and the Network of Aquaculture Centres in Asia-Pacific (NACA), was opened on 25 March 2008 in Maruay Garden Hotel, Bangkok, Thailand by Dr Sakchai Sriboonsue, Director General of Department of Livestock Development, Royal Government of Thailand.
Photo: Dr Sriboonsue, Director General of the Department of Livestock Development, Thailand (left); Dr Teruhide Fujita, OIE Regional Representative for Asia and the Pacific (right). |
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