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dc.creatorHudnall, Jennifer Annen_US
dc.descriptionDue to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to, referencing the URI of the item.en_US
dc.descriptionIncludes bibliographical references (leaves 58-64).en_US
dc.descriptionIssued also on microfiche from Lange Micrographics.en_US
dc.description.abstractThe use of antibiotics in medicine and agriculture has steadily increased over the years. While this may be beneficial to patients and producers, some research has suggested that this use is responsible for selecting antibiotic-resistant bacteria associated with foodborne illness. Since these pathogens may be associated with consumption of undercooked meat, the importance of studying antibiotic resistance starting with the food source is apparent. We proposed to evaluate the prevalence of antibiotic-resistant Salmonella within feedlot cattle, sampling the cattle and their environment, including soil, feed, water, and fecal pats. Samples were collected from an available feedlot that does not administer antibiotic-supplemented feed or growth promoters to its cattle. Confirmed Salmonella isolates were serotyped, fingerprinted, and characterized through antibiotic resistance testing to determine common sources and incidence of antibiotic resistance at the feedlot. Salmonella prevalence increased in cattle and environmental samples from day 1 to day 85, with significant increases in hide and environmental contamination. Fingerprinting and serotyping results indicated commingling as a possible source for the spread of hide contamination. Most serotypes recovered were not those commonly associated with human illness.en_US
dc.publisherTexas A&M Universityen_US
dc.rightsThis thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use.en_US
dc.subjectfood science and technology.en_US
dc.subjectMajor food science and technology.en_US
dc.titlePrevalence and antibiotic resistance of Salmonella in feedlot cattleen_US
dc.typeThesisen_US science and technologyen_US
dc.format.digitalOriginreformatted digitalen_US

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