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« เมื่อ: เมษายน 23, 2007, 11:00:14 AM »




On April 12, 2007, Bio Solutions Co., Ltd., which markets a shrimp immunostimulant and probiotics, and Virbac S.A., which markets biological and pharmaceutical products for veterinary and animal health, announced a new joint venture called Bio Solutions International, Co., Ltd.

The first issue of Bio News, the venture's online newsletter/brochure (delivered as a PDF file covering the use of its products in Thailand, Vietnam, India, Philippines and Bangladesh), contained an article on necrotizing hepatopancreatitis (NHP) in Southeast Asia. Some excerpts:

Necrotizing Hepatopancreatitis (NHP) is caused by a small, gram-negative bacteria that attacks the cells of the hepatopancreas. Reported hosts of NHP include Penaeus vannamei, P. setiferus, P. stylirostris, P. aztecus and P. californiensis. Gross signs of NHP include: reduced feed intake, empty gut, lethargy, anorexia, soft shells, heavy fouling from external parasites, black gills and discoloration and atrophy of the hepatopancreas. The hepatopancreas of infected shrimps degenerates and becomes pale to white. NHP does not seem to occur when temperatures are above 29°C or when salinities are below 10 parts per thousand.

In Thailand, NHP appeared in 2005, first along the south coast and then along the east coast. Since then its incidence has risen at an alarming rate. In addition to destroying hepatopancreas cells, it causes dwarfing and swelling. Disease outbreaks are more severe in the south than in the east, primarily due to the high stocking densities in the south (>150 PL/m2). Thai shrimp farmers are learning to prevent the disease by strengthening the functions of the hepatopancreas and by stimulating the immune system. This is achieved by applying immune stimulants, probiotics and hepatopancreas enrichment agents to the feed at the first signs of the disease.

In Vietnam, outbreaks of NHP have been reported in the Khanh Hoa, Hue and Quang Binh provinces. From January to March 2007, there were no reports of NHP in Bangladesh, Myanmar or Singapore. Sri Lanka, Korea, Philippines, Nepal, Indonesia, Hong Kong, Japan and Australia have never reported NHP.

Information: Chupong Laohapornsvan, Managing Director, and Amir Khalil, Business Development Manager, Bio News Unit/Bio Solution International, Co., Ltd., 134/4 Moo 5, Bangkadi Industrial Park, Tiwanon Road, T. Bangkadi A. Muang, Pathumthani 12000 Thailand (phone 66-2501-2045, 66-2501-2046 and 66-2501-2655, fax 66-2501-2047 and 66-2501-3069, email support@biohero.com, www.biohero.com, webpage www.biohero.com).

Sources: 1. Bio News: The International Aquaculture News. Bio News Unit of Bio Solution International, Co., Ltd., A Synergy for Excellence in Aquaculture (page 1) and Necrotizing Hepatopancreatitis (NHP) in the Asia Pacific (page 3), First Issue, April 2007. 2. Email from Bio Solutions International Co., Ltd., to Shrimp News International on April 12, 2007.
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