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incidence of class 1 integron and other antibiotic resistance determinants in aeromonas spp. from rainbow trout farms in australia.there is limited information on antibiotic resistance determinants present in bacteria of aquaculture origin in australia. the presence of integron and other resistance determinants was investigated in 90 aeromonas isolates derived from nine freshwater trout farms in victoria (australia). polymerase chain reaction was carried out for the detection of integrase genes int1, int2 and int3, gene cassette array, integron-associated aada, sul1 and qac1 genes, streptomycin resistance genes stra-strb, ß ...201121762170
further observations on the epidemiology and spread of epizootic haematopoietic necrosis virus (ehnv) in farmed rainbow trout oncorhynchus mykiss in southeastern australia and a recommended sampling strategy for surveillance.epizootic haematopoietic necrosis virus (ehnv) is an iridovirus confined to australia and is known only from rainbow trout oncorhynchus mykiss and redfin perch perca fluviatilis. outbreaks of disease caused by ehnv in trout populations have invariably been of low severity, affecting only 0+ post-hatchery phase fingerlings < 125 mm in length. to date the virus has been demonstrated in very few live in-contact fish, and anti-ehnv antibodies have not been found in survivors of outbreaks, suggesting ...199910092975
isolation of a novel aquatic birnavirus from rainbow trout oncorhynchus mykiss in australia.in november 2010, a rainbow trout (oncorhynchus mykiss) hatchery in victoria reported increased mortality rates in diploid and triploid female fingerlings. live and moribund fish were submitted for laboratory investigation. all fish showed hyperpigmentation of the cranial half of the body. histological lesions were seen in all areas of skin examined despite the localised nature of the gross lesions. there was irregular hyperplasia and spongiosis, alternating with areas of thinning and architectu ...201525993886
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