RESEARCH SOME OF CHARACTERISTICS OF VIBRIO PARAHAEMOLYTICUS WHICH CAUSES EMS DISEASE ON JUVENILE SHRIMP AT DIEN HUONG COMMUNITY, PHONG DIEN DISTRICT, THUA THIEN HUE PROVINCE
Abstract
Early mortality syndrome has damaged largely for both output and profits in aquaculture. According to Lightner (2012) [9], the main cause of early mortality syndrome is caused by genes stick on Vibrio parahaemolyticus which produce toxins maked liver pancreatic atrophy and die. The research team found that EMS was caused by a single strain of a bacterial species common - Vibrio parahaemolyticus. The bacteria are transmitted orally, then it enters the digestive tract of shrimp, creating toxins that destroys tissue, causing dysfunction of liver and pancreatic digestive organs. World scientific community has had to distinguish hundreds of different lines of Vibrio parahaemolyticus, however, only a minority of virulent strains which caused disease EMS on shrimp (Loc Tran et al., 2013) [7], but if the presence of more bacteria and high density will surely cause disease and even lethal to aquatic animals. Therefore, finding the causes as well as measuring to limit the Vibrio parahaemolyticus bacteria that caused disease in the pond is essential.
Keywords: EMS - early mortality syndrome, Vibrio parahaemolyticus
References
Nguyễn Lân Dũng và ctv (1976), Một số phương pháp nghiên cứu vi sinh vật học. Tập 2.NXB Khoa học và Kỹ thuật Hà Nội, Hà Nội
Nguyễn Quang Linh, Hồ Thị Tùng, Kiều Thị Huyền (2012), Báo cáo hội thảo: Hội chứng hoại tử gan tụy trên tôm nuôi tại vùng đàm phá Thừa Thiên Huế.
Lương Đức Phẩm (1998), “Công nghệ vi sinh vật”, NXB Nông nghiệp, Hà Nội, tr.112- 154.
Trần Linh Thước (2008), Phương pháp phân tích vi sinh vật trong nước, thực phẩm và mỹ phẩm, NXB Giáo dục, Tp.Hồ Chí Minh, tr.232.
Tổng cục Thủy sản (2013), Tình hình dịch bệnh và kiểm soát dịch bệnh trên tôm nước lợ.
Bergey, D. H. (David Hendricks), 1860-1937; Breed, Robert S. (Robert Stanley), 1877-1956, Bergey’s Manual of Determinative Bacteriology (1957), Baltimore, Williams & Wilkins Co.
FAO Fisheries and Aquaculture Report No. 1053 (2013), FAO/MARD Technical Workshop on Early Mortality Syndrome (EMS) or Acute epatopancreatic Necrosis Syndrome (AHPNS) of Cultured Shrimp (under TCP/VIE/3304), Hanoi, Viet Nam, 25–27 June.
Flegel, T.W. , C.F. Lo. (2013), Announcement regarding free release of primers for specific detection of bacterial isolates that cause acute hepatopancreatic necrosis disease (AHPND).
Lightner, D.V., Redman, R.M., Pantoja, C. R., Noble, B. L., Loc, T. (2012b). Early mortality syndrome affects shrimp in Asia. Global aquaculture advocate January/ Febuary 2012: 40
Moriarty DJW (1998), Control of luminuos Vibrio species in penaeid aquaculture ponds, Aquacult 164: 351 – 358.
