| characterization of nodavirus and viral encephalopathy and retinopathy in farmed turbot, scophthalmus maximus (l.). | an outbreak of nodavirus infection in turbot larvae is described with respect to histopathology, immunohistochemistry, cell culture cultivation, rt-pcr amplification and sequence analysis of the capsid protein gene rna2. affected turbot developed classical signs of viral encephalopathy and retinopathy (ver) with abnormal swimming behaviour and high mortality levels. in the acute stage of infection, light microscopy revealed vacuolation of the central nervous system (cns), with positive immunohis ... | 2004 | 15482424 |
| epidemiology of bacterial diseases in norwegian aquaculture--a description based on antibiotic prescription data for the ten-year period 1991 to 2000. | in norway, antibacterial drugs for use in farmed fishes have to be prescribed by a veterinarian. moreover, a national surveillance programme requires that copies of all prescriptions be sent to the directorate of fisheries. the prescriptions give information regarding fish farm and locality, weight and species of fish to be medicated, diagnosis, type and amount of drug prescribed, and date. these prescription data for the 10 yr period 1991 to 2000 have been recorded and systematised. a total of ... | 2003 | 12650244 |