Index Catalog // ScholarsArchive@OSU

Germicide effectiveness and taxonomic studies on microbial isolates from meat and poultry plants

Creator:: Schwartz, James
Abstract:: A large number of bacterial and yeast isolates were obtained from meat and poultry processing plants by swab and contact plate sampling methods. Most of the isolates were subjected to a brief taxonomic study and listed according to their sources. Representative food spoilage, indicator and pathogenic organisms were identified to...
Resource Type:: Masters Thesis
Full Text:: both soft (distilled) and hard (USDA - 500 ppm CaCO3) water, and the bactericidal effectiveness of

Disease models and infectious phenotypes of Mycobacterium avium subspecies paratuberculosis

Creator:: Everman, Jamie L.
Abstract:: Mycobacterium avium subspecies paratuberculosis (MAP) is the causative agent of Johne's disease, a chronic inflammatory bowel disease that affects ruminant populations worldwide. The characteristic stages of the disease make diagnosis difficult, resulting in silent transmission among animals in a herd for years before proper detection of the infection. The extensive...
Resource Type:: Dissertation
Full Text:: Disease Models and Infectious Phenotypes of Mycobacterium

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Creator:: Jakaitis, Michelle
Abstract:: Hatcheries are often perceived as a source of pathogen amplification, potentially increasing disease risk to free-ranging populations; at the same time, free-ranging fishes may introduce pathogens into hatcheries through untreated water sources. Many pathogens exist naturally within the environment (with the exception of introduced pathogens) and the presence of a...
Resource Type:: Masters Thesis
Full Text:: health plans to minimize and mitigate disease (APHIS 2008), continuing research is needed to better

Hydraulic predictors and seasonal distribution of Manayunkia speciosa density in the Klamath River, CA, with implications for ceratomyxosis, a disease of salmon and trout

Creator:: Jordan, Michelle S.
Abstract:: The freshwater polychaete Manayunkia speciosa was identified as an obligate host of the salmonid parasite Ceratomyxa shasta in 1997, prompting increased research on the small benthic invertebrate. Ceratomyxa shasta infection in fish can cause mortality, and presents a disease risk for both hatchery and wild salmon and trout. Ceratomyxa shasta...
Resource Type:: Masters Thesis
Full Text:: Salmonid Whirling Disease. Journal of Aquatic Animal Health, 2(1), 30-37. doi: 10.1577/1548-8667(1990

Phylogeny and intracellular survival of Renibacterium salmoninarum

Creator:: Gutenberger, Susan K.
Resource Type:: Dissertation
Full Text:: from the ocean in the early 1950's. The disease, and hence research, was eliminated by the

Persistent infection of salmonid cell lines with infectious pancreatic necrosis virus : a model for the carrier state in trout

Creator:: Hedrick, Ronald Paul
Abstract:: Persistent infections with infectious pancreatic necrosis virus (IPNV) were established in two salmonid cell lines and in live brook trout. Virus inocula containing high concentrations of defective interfering IPNV enhanced but were not a requirement for the establishment of persistent infections in cell lines derived from steelhead trout (STE-137) and...
Resource Type:: Dissertation
Full Text:: Oregon Department of Fish and Wildlife under the Anadromous Fish Act Fund (PL-89-304). TABLE OF

Analysis of Betta splendens erythrophore responses to Bacillus cereus cultured in different media

Creator:: Austin, Melissa J.
Abstract:: Biological agents and their products commonly cause foodborne illnesses. In the United States it is estimated that there are over 76 million cases of foodborne illnesses each year, resulting in an economic loss of approximately $40 billion. These high figures demonstrate the need for bioassays that display a rapid and...
Resource Type:: Masters Thesis
Full Text:: economic loss per year is between $20 billion and $40 billion. In actuality, the total disease burden for

Pasteurella multocida infection in turkeys : pathogenesis and immunity

Creator:: Tsuji, Masayoshi
Abstract:: Pathogenesis and immunity involved in fowl cholera were studied with the turkey, one of the most susceptible natural hosts. The causative agent, Pasteurella multocida, was analyzed in terms of its virulence and immunogenic factors, using a highly virulent, encapsulated strain P-1059. Protective immunity was induced by lipopolysaccharide (LPS)- protein complex...
Resource Type:: Dissertation
Full Text:: Meeting of the Conference of Research Workers in Animal Disease, Chicago, Illinois. 1983, p 35. 82

Bacterial pathogens and associated toxins involved in erythrophore cell aggregation

Creator:: Hutchison, Janine R.
Abstract:: Current detection methods for bacterial contamination rely on structure based detection of proteins and nucleic acids. While these methods are easy to use and reliable, they cannot evaluate the toxicity of a sample and the potential to cause disease. Previously, erythrophore cells derived from Betta splendens had been suggested as...
Resource Type:: Dissertation
Full Text:: research and has many applications including diagnosis of microbial infection and genetic disease, as

Virulence factors of Aeromonas salmonicida and their interaction with the salmonid host

Creator:: Rockey, Daniel D.
Abstract:: Selected secreted and cellular virulence factors of Aeromonas salmonicida were examined. A protocol was developed for the separation of two secreted proteases (P1 and P2 protease), and a trout erythrocyte specific hemolysin (T-lysin) from supernatants of cultures of the bacterium. Distinctions between the proteases were demonstrated using molecular weight determinations,...
Resource Type:: Dissertation
Full Text:: principal funding for this research was received from USDA Science and Education grant no. 85-CRSR-2-2578

ScholarsArchive@OSU

Germicide effectiveness and taxonomic studies on microbial isolates from meat and poultry plants

Disease models and infectious phenotypes of Mycobacterium avium subspecies paratuberculosis

Assessing disease impacts of hatcheries on downstream salmonids in the Willamette River Basin, Oregon

Hydraulic predictors and seasonal distribution of Manayunkia speciosa density in the Klamath River, CA, with implications for ceratomyxosis, a disease of salmon and trout

Phylogeny and intracellular survival of Renibacterium salmoninarum

Persistent infection of salmonid cell lines with infectious pancreatic necrosis virus : a model for the carrier state in trout

Analysis of Betta splendens erythrophore responses to Bacillus cereus cultured in different media

Pasteurella multocida infection in turkeys : pathogenesis and immunity

Bacterial pathogens and associated toxins involved in erythrophore cell aggregation

Virulence factors of Aeromonas salmonicida and their interaction with the salmonid host

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