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THE EFFECTIVENESS OF DUAL ENERGY X-RAY ABSORPTIOMETRY TO NON-INVASIVELY DETERMINE BODY COMPOSITION OF HYBRID STRIPED BASS

dc.contributor.advisorSoares, Jr, Joseph Hen_US
dc.contributor.authorWood, Sarah Ellenen_US
dc.date.accessioned2004-06-04T05:48:04Z
dc.date.available2004-06-04T05:48:04Z
dc.date.issued2004-05-12en_US
dc.identifier.urihttp://hdl.handle.net/1903/1476
dc.description.abstractThe primary objective of this research project was to determine if dual energy x-ray absorptiometry was a valid method for non-invasively determining body composition of hybrid striped bass (Morone chrysops ♀ x. Morone saxatilis ♂). The first study utilized four dietary treatments to create a population with a broad range of body compositions. Fish were scanned using the Lunar model DPX-L dual energy x-ray absorptiometer in detailed medium and high resolution scan modes, manually analyzed for region of interest, in stacks, and scanned with a Hologic model QDR-4500A fan beam DXA. When compared to proximate analysis, results produced significant correlations and regression equations for: water and protein compared to lean, grams of fat, and ash compared to bone mineral composition. The second study utilized four dietary treatments of various energy:protein ratios to determine the ability of DXA to distinguish variations in body composition in accordance with dietary treatment. Fish were scanned with the Lunar model DPX-L DXA as well as the Lunar PIXImus DXA. The two scan values were compared to one another as well as to proximate analysis. Significant correlations and regression equations were calculated for the same comparisons as listed above. Fan beam DXA was less reliable as a predictor of body composition than pencil beam, and there was no difference between values from scan modes for the pencil beam DXA. PIXImus DXA was limited by size of the scan area, but was as successful as the larger pencil beam method for predicting certain parameters of body composition.en_US
dc.format.extent1067685 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleTHE EFFECTIVENESS OF DUAL ENERGY X-RAY ABSORPTIOMETRY TO NON-INVASIVELY DETERMINE BODY COMPOSITION OF HYBRID STRIPED BASSen_US
dc.typeThesisen_US
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_US
dc.relation.isAvailableAtUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentAnimal Sciencesen_US
dc.subject.pqcontrolledAgriculture, Fisheries and Aquacultureen_US
dc.subject.pquncontrolledhybrid striped bassen_US
dc.subject.pquncontrolleddual energy x-ray absorptiometryen_US
dc.subject.pquncontrolledbody compositionen_US


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