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Arctic char (Salvelinus alpinus) cultured in a recirculation system developed chronic diarrhea with no mortality. Histopathology revealed moderate to severe enteritis. Infectious agents were not detected. Fecal water content and f...
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Arctic char (Salvelinus alpinus) cultured in a recirculation system developed chronic diarrhea with no mortality. Histopathology revealed moderate to severe enteritis. Infectious agents were not detected. Fecal water content and fecal bacterial counts were elevated. Diarrhea was likely due to dietary imbalance that affected digestibility of feed components.
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During the workshop, the short lectures of several research groups were presented. The report covers both the presentations and subsequent discussion session.
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The presentations in this workshop comprised an overview of bacterial and viral disease of gadoids, an overview of gadoid parasites, a survey of the parasite fauna of wild gadoids in the Scottish coastal zone, an investigation of ...
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The presentations in this workshop comprised an overview of bacterial and viral disease of gadoids, an overview of gadoid parasites, a survey of the parasite fauna of wild gadoids in the Scottish coastal zone, an investigation of the imapct of Lernaeocera branchialis on juvenile cultured cod and a note on the occurrence of Clavella adunca in wild gadoids.
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The study involved 30-135 g carp more than one year old, that had been cultured since the stage of summer fry at the Fisheries Research Station operated by the Agricultural University's Department of Aquaculture, University of Szc...
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The study involved 30-135 g carp more than one year old, that had been cultured since the stage of summer fry at the Fisheries Research Station operated by the Agricultural University's Department of Aquaculture, University of Szczecin and located in a Dolna Odra power station cooling water canal. The fish selected for analyses showed the following clinical signs in summer: apathy; strong necrotic patches on gills; lustreless and rough skin with numerous deep necrotic spots extending down to the muscles; deposits of thick mucus under the gill covers. On the 4th of June 2004, three carp samples of 15 individuals each were delivered live to the German National Reference Laboratory Insel Riems for analyses. Koi herpesvirus was detected in two out of the three samples using different PCR assays. The PCR results were confirmed by nested PCR and in situ hybridization. Assays were performed on gills, brain, and kidney tissues. Samples were also taken from outbreak survivors showing no clinical signs of disease in autumn 2004 and tested by PCR and nested PCR. These results were also confirmed by in situ hybridization using different probes. This is the first detection, virus isolation and confirmation of KHV in Poland.
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This report describes the pathological effects Lamellodiscus spp. on the gills of the sharpsnout seabream, Diplodus puntazzo and the efficacy of formalin as a treatment. Two species of Lamellodiscus were identified: Lamellodiscus ...
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This report describes the pathological effects Lamellodiscus spp. on the gills of the sharpsnout seabream, Diplodus puntazzo and the efficacy of formalin as a treatment. Two species of Lamellodiscus were identified: Lamellodiscus ergensi and L. bidens. The attachment of parasites caused destruction, fusion and hyperplasia of the gill filaments. Formalin was effective in removing the worms when applied as a bath treatment at a concentration of 200mg/ml for one hour.
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The overall goal of this Plan is to protect American animal agriculture by safeguarding animal health to assure the well-being of U.S. citizen's. This is to be achieved by controlling the introduction or spread, of any foreign or ...
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The overall goal of this Plan is to protect American animal agriculture by safeguarding animal health to assure the well-being of U.S. citizen's. This is to be achieved by controlling the introduction or spread, of any foreign or domestic disease threat. The United States Animal Identification Plan intends to control or eradicate an animal health threat by achieving a trace back system that will identify all animals and premises potentially exposed to an animal with a foreign animal disease within 48 hours after discovery of the disease.
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The Juvenile Oyster Disease Workshop held in conjunction with the 26th Milford Aquaculture Seminar chronicled two decades of an industry's fight against juvenile oyster disease to save their businesses; their partnership with the ...
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The Juvenile Oyster Disease Workshop held in conjunction with the 26th Milford Aquaculture Seminar chronicled two decades of an industry's fight against juvenile oyster disease to save their businesses; their partnership with the research community to find the causative agent(s) for this devastating disease of cultured young oysters; and their experiences in learning how to manage this disease to keep an industry alive.
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Serum samples obtained from fish experimentally challenged or immunized with Nocardia seriolae were analyzed in order to evaluate the antibody response against N. seriolae. Indirect enzyme-linked immunoabsorbent assay (ELISA) was ...
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Serum samples obtained from fish experimentally challenged or immunized with Nocardia seriolae were analyzed in order to evaluate the antibody response against N. seriolae. Indirect enzyme-linked immunoabsorbent assay (ELISA) was applied for antibody quantification with whole cell sonicated antigens (WCA) prepared from N. seriolae. The antibody responses were observed in yellowtail Seriola quinqueradiata and amberjack Seriola dumerili that were immersed in a suspension of N. seriolae cells. Although yellowtail immunized with formalin-killed cells (FKC) of N. seriolae or FKC with Freund's Incomplete Adjuvant (FKC-FIA) showed humoral responses against WCA, no protective effects resulting from the immunization with FKC or FKC-FIA were observed.
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NOAA Sea Grant biologists have discovered that the antibiotic oxytetracycline administered orally in abalone feed cures the deadly abalone disease known as withering syndrome. They are now working on developing a single low-dose c...
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NOAA Sea Grant biologists have discovered that the antibiotic oxytetracycline administered orally in abalone feed cures the deadly abalone disease known as withering syndrome. They are now working on developing a single low-dose cure that would significantly lower the labor and rearing costs of treating infected animals.
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