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Naturally concurrent infections of bacterial and viral pathogens in disease outbreaks in cultured Nile tilapia (Oreochromis niloticus) farms
Dong H.T. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Naturally concurrent infections of bacterial and viral pathogens in disease outbreaks in cultured Nile tilapia (Oreochromis niloticus) farms
ผู้แต่ง / หัวหน้าโครงการ (EN): Dong H.T.
บทคัดย่อ (EN): The reality of dead-loss in cultured fish farms due to multiple pathogen infections probably outweighs single infection. Here, we describe the isolation and characterization of the potential pathogens concurrently infected in natural disease outbreaks of Nile tilapia (Oreochromis niloticus) and their pathogenicity in the red tilapia fingerling model. Co-infection of bacteria and Iridovirus was found in two affected farms. Based on conventional phenotypic tests and sequence analysis of 16S rDNA fragment, most predominant bacteria were identified as Flavobacterium columnare and Aeromonas veronii, and remainders were Streptococcus agalactiae, Plesiomonas shigeloides and Vibrio cholerae. Experimental infection with selected single bacterial isolates demonstrated that both alpha- and beta-hemolytic A. veronii isolates were highly pathogenic to tilapia fingerling, whereas F. columnare and S. agalactiae were less virulent and P. shigeloides was avirulent. The fish exposed to A. veronii or F. columnare mimicked major internal and external clinical signs of naturally infected fish respectively. This suggests that A. veronii and F. columnare are two main pathogens co-responsible for the dead-loss of cultured tilapia farms in the present study, whereas remaining pathogens might serve as opportunistic pathogens in the disease outbreaks. Statement of relevance: The authors strongly believe that our manuscript would provide significant knowledge to fish aquaculture especially to that of the Nile tilapia (Oreochromis niloticus). © 2015 Elsevier B.V.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84935029628&doi=10.1016%2fj.aquaculture.2015.06.027&partnerID=40&md5=e26dad96acb7378d5e4dbd3a77ddab29
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Vibrio cholerae
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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Naturally concurrent infections of bacterial and viral pathogens in disease outbreaks in cultured Nile tilapia (Oreochromis niloticus) farms
Dong H.T.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Vertical transmission and concurrent infection of multiple bacterial pathogens in naturally infected red tilapia (Oreochromis spp.) Francisella noatunensis subsp. orientalis, an emerging bacterial pathogen affecting cultured red tilapia (Oreochromis sp.) in Thailand Aeromonas jandaei and Aeromonas veronii caused disease and mortality in Nile tilapia, Oreochromis niloticus (L.) Viral infections in tilapines: More than just tilapia lake virus Effect of plant-extracts on quality changes of refrigerated Nile tilapia Oreochromis niloticus (Linnaeus, 1758) fillets Tilapia lake virus (TiLV) from Peru is genetically close to the Israeli isolates Nile tilapia reared under full-strength seawater: Hemato-immunological changes and susceptibility to pathogens Piper betle leaf extract inhibits multiple aquatic bacterial pathogens and in vivo streptococcus agalactiae infection in nile tilapia Effects of Melamine and Urea formaldehyde contamination in Nile tilapia (Oreochromis niloticus) diets on growth performance, economic loss and toxicity appearance characteristic index การเลี้ยงปลานิล (Oreochromis niloticus) ที่เป็นมิตรกับสิ่งแวดล้อม
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