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dc.contributor.authorKanistanon, Kwankateen_US
dc.date.accessioned2014-03-14T20:52:33Z
dc.date.available2014-03-14T20:52:33Z
dc.date.issued1997-03-11en_US
dc.identifier.otheretd-926111839751071en_US
dc.identifier.urihttp://hdl.handle.net/10919/37040
dc.description.abstractRecords of bovine samples submitted for salmonella cultures at four regional diagnostic laboratories in the state of Virginia were used to investigate the association of weather conditions and the diagnosis of salmonellosis in cattle. Spearman's correlation coefficients were calculated for the correlations between the monthly number of samples positive for salmonella culture and weather parameters: temperature, precipitation, and relative humidity. Significant correlation coefficients between the monthly average temperature and the monthly number of positive samples were found to be negative in one laboratory (rs= -0.38, p=0.03) and positive in one laboratory (rs=0.30, p=0.02). The latter correlation coefficient was found between the monthly average temperature and the monthly number of positive samples the following month. The same laboratories that had significant correlation of the monthly number of positive samples and the monthly average temperature also had significant correlation with the monthly average relative humidity (rs= -0.39, p=0.03 and rs=0.37, p=0.004). The monthly average relative humidity was more highly correlated to the number of positive samples reported in the same month for both laboratories that had significant correlation coefficients. None of the correlations between the monthly precipitation and the monthly number of positive samples were significant (p>0.05). The inconsistent directions of correlation coefficients need to be investigated further to find a reason for the discrepancy between regions of the state.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartETD.PDFen_US
dc.rightsI hereby grant to Virginia Tech or its agents the right to archive and to make available my thesis or dissertation in whole or in part in the University Libraries in all forms of media, now or hereafter known. I retain all proprietary rights, such as patent rights. I also retain the right to use in future works (such as articles or books) all or part of this thesis or dissertation.en_US
dc.subjectweatheren_US
dc.subjectsalmonellaen_US
dc.subjectcattleen_US
dc.titleCorrelation of Environmental Temperature, Precipitation, and Humidity with Salmonella Culture Results from Cattle in Virginiaen_US
dc.typeThesisen_US
dc.contributor.departmentLarge Animal Clinical Sciencesen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeememberRoberson, Jerry R.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-926111839751071/en_US
dc.contributor.committeecochairPelzer, Kevin D.en_US
dc.contributor.committeecochairWarnick, Lorin D.en_US
dc.date.sdate1998-07-17en_US
dc.date.rdate1998-03-11
dc.date.adate1997-03-11en_US


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