Index Catalog // ScholarsArchive@OSU

Deschutes River Salmonid Risk of Enteronecrosis in a Changing Climate

Creator:: Yusova, Sofiya
Abstract:: Ceratonova shasta is an obligate endoparasite of salmonid fish that is endemic to the Pacific Northwest of North America. The parasite has a complicated lifecycle with two distinct spore stages and two obligate hosts, a salmonid and a freshwater annelid. Myxospores released from infected salmonid hosts, infect Manayunkia occidentalis (freshwater...
Resource Type:: Masters Thesis
Full Text:: River Salmonid Risk of Enteronecrosis in a Changing Climate. Abstract approved

Intestinal Lesions and Parasites Associated with Senescence and Prespawn Mortality in Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Nervino, Stephanie A.
Abstract:: Pre-spawning mortality (PSM) presents a major problem for population recovery of spring Chinook salmon (Oncorhynchus tshawytscha) in the Willamette River basin. In certain reaches and years, PSM has exceeded 90%. Histology has been used as the primary diagnostic method to investigate PSM in the Chinook Salmon, and a collection of...
Resource Type:: Masters Thesis
Full Text:: Michael L Kent Pre-spawning mortality (PSM) presents a major problem for population recovery

The growth of Chlorella vulgaris 211/8K in diluted swine manure as a function of temperature, light intensity, depth, and retention time

Creator:: Seward, Robert Albert
Resource Type:: Masters Thesis
Full Text:: manure as a function of temperature, light intensity, depth, and retention time AN ABSTRACT OF THE

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Creator:: De Lorme, Marthah J. M.
Abstract:: 2,4,6-Trinitrotoluene (TNT) has been the common munitions used in the world and is an environmental contaminant that is amendable to reductive transformation reactions. The rumen is an extremely reductive environment containing diverse microbial populations. There are 21 pure culture ruminal bacteria species in culture collection, these were tested for the...
Resource Type:: Dissertation
Full Text:: Abstract approved: ________________________________________________ A. Morrie Craig 2,4,6

Molecular characterization of bacterial populations implicated inthe anaerobic metabolism of toxic plant alkaloids from two different experimental and environmental sources

Creator:: Rattray, Rogan MacKay
Abstract:: There have been many studies that describe the protective degradation or metabolism of potentially harmful plant toxins, such as, mimosine from Leucaena leuconcephala, pyrrolizidine alkaloids from tansy ragwort (Senecio jacobaea), oxalate and some mycotoxins by rumen microbes. There are many cases of plant-related toxicoses suffered by ruminant animals where there...
Resource Type:: Masters Thesis
Full Text:: Sources. Abstract approved: _____________________________________________________ A. Morrie

Ruminal Biodegradation of Heterocyclic Toxic Compounds

Creator:: Tanaree, Dan D.
Abstract:: Cyclic nitramines are a class of compounds that include most of the commonly used explosives today. These are among the most common toxicants released into the environment as a result of human activity, generated on military ranges, battlefields, and production sites. Of these, hexahydro-1,3,5-trinitro-1,3,5- triazine (RDX) is of particular interest,...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ A. Morrie Craig Cyclic nitramines are a class of compounds that include most of the

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

Creator:: Gray, Diane R.
Abstract:: Bacterial cultures enriched from sheep rumen fluid have demonstrated the ability to detoxify pyrrolizidine alkaloids (seneciphylline and jacobine) in tansy ragwort (Senecio jacobaea). The microbes are difficult to isolate using classical anaerobic techniques, therefore, microbes from two different enrichment cultures demonstrating similar degradation activity were identified using their 16S ribosomal...
Resource Type:: Masters Thesis
Full Text:: Analysis of Pyrrolizidine Alkaloid Detoxifying Enrichments from the Ovine Rumen Abstract approved: A

Investigations of T cell costimulation and autoimmunity in mice, and development of flow cytometric methods to assess lymphocyte stimulation in dogs

Creator:: Weatherill, Amy R.
Abstract:: Proper immune function is indispensable, as failure to mount an immune response against a pathogen can lead to serious complications or even death. T cells act by enhancing the activation of phagocytic cells as well as the activation of B cells. Their widespread influence on an immune response makes optimal...
Resource Type:: Dissertation
Full Text:: Stimulation in Dogs. Abstract Approved: Jean A. Hall Proper immune function is indispensable, as failure to

Erythrocytic inclusion body syndrome : salmonid stock susceptibility, secondary diseases, and vitamin therapy

Creator:: Shanks, Carol A.
Abstract:: Erythrocytic inclusion body syndrome (EIBS) was artificially established in selected stocks of juvenile fall and spring chinook salmon (Oncorhynchus tshawytscha), chum salmon (0. keta), coho salmon (0. kisutch), Atlantic salmon (Salmo salar), and rainbow trout (0. mykiss). Adult spring chinook salmon were also artificially infected with the EIBS virus. Adult...
Resource Type:: Masters Thesis
Full Text:: susceptibility, secondary diseases, and vitamin therapy AN ABSTRACT OF THE THESIS OF Carol A. Shanks for the

Vitamin B₁₂ production and depletion in a naturally eutrophic lake

Creator:: Gillespie, P. A.
Abstract:: The vitamin B₁₂ concentrations in both the water and sediments of Klamath Lake were found to vary significantly during a one-year period. The patterns of B₁₂ distribution were remarkably similar among the three main sites. In all cases there was an extremely sharp gradation in concentration in relation to depth...
Resource Type:: Dissertation
Full Text:: ) Title: VITAMIN Biz PRODUCTION AND DEPLETION IN A NATURALLY EITTROPT-ITC 14K17 Abstract approved

ScholarsArchive@OSU

Deschutes River Salmonid Risk of Enteronecrosis in a Changing Climate

Intestinal Lesions and Parasites Associated with Senescence and Prespawn Mortality in Chinook Salmon (Oncorhynchus tshawytscha)

The growth of Chlorella vulgaris 211/8K in diluted swine manure as a function of temperature, light intensity, depth, and retention time

Biotransformation of 2,4,6-trinitrotoluene by ruminal organisms

Molecular characterization of bacterial populations implicated inthe anaerobic metabolism of toxic plant alkaloids from two different experimental and environmental sources

Ruminal Biodegradation of Heterocyclic Toxic Compounds

Bacterial 16S ribosomal DNA analysis of pyrrolizidine alkaloid detoxifying enrichments from the ovine rumen

Investigations of T cell costimulation and autoimmunity in mice, and development of flow cytometric methods to assess lymphocyte stimulation in dogs

Erythrocytic inclusion body syndrome : salmonid stock susceptibility, secondary diseases, and vitamin therapy

Vitamin B₁₂ production and depletion in a naturally eutrophic lake

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