microorganisms associated with pneumonia in slaughter weight swine.the lungs of 334 pigs were obtained from two slaughter plants in minnesota and examined in detail. macroscopic and microscopic evaluation, direct fluorescence for mycoplasma hyopneumoniae and bacterial culture were done on all of them and a subsample of 50 were selected for virus culture. mycoplasma hyopneumoniae, pasteurella multocida and haemophilus spp. were detected in 24.0%, 34.1% and 27.0% of the lungs, commonly in conjunction with each other. one isolate of haemophilus pleuropneumoniae se ...19854016578
a retrospective analysis on the epizootiological aspects of outbreaks of pasteurella anatipestifer infection in turkeys in minnesota.the possible risk factors associated with outbreaks of pasteurella anatipestifer infection in turkeys were analyzed to study the epizootiology of the disease. the data for the study was obtained from flocks affected and unaffected with pasteurella infection. the results of the analysis suggested that overcrowding, preexisting viral infections, increased activity of wild birds on the farm, and shorter down time were possible factors that initiate the occurrence of the disease in turkey flocks. th ...19911924089
serotyping of mannheimia (pasteurella) haemolytica isolates from the upper midwest united states.mannheimia (pasteurella) haemolytica biotype a serotype1 (a1) is the primary bacterial agent responsible for the clinical signs and pathophysiologic events in bovine pneumonic pasteurellosis. the goal of this study was to determine the prevalence of other serotypes of m. haemolytica biotype a organisms obtained from the upper midwest diagnostic laboratories. a total of 147 m. haemolytica isolates were collected from minnesota, south dakota, and michigan. isolates were tested against m. haemolyti ...200011108463
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