Index Catalog // ScholarsArchive@OSU

Creator:: Dutson, Val J.
Abstract:: The biology, history and synonyms of reviewed and the known distribution given. Fascioloides magna were reviewed and the known distribution given. Studies have shown that Cervidae are the natural hosts and domestic ruminants the accidental hosts. The parasite is reportedly pathogenic to goats and sheep but causes severe tissue reactions...
Resource Type:: Masters Thesis

Creator:: Helfer, Donald Harold
Abstract:: The literature relating to fascioliasis in experimental hosts, and the clawed jird (Meriones unguiculatus) as an experimental host was reviewed. Four experiments were conducted using experimental hosts for Fasciola hepatica. The first two experiments were done using Swiss mice, B. P. laboratory albino strain; the third and fourth experiments involved...
Resource Type:: Masters Thesis

Creator:: Nyberg, Peter Albert
Abstract:: The presence of the etiologic agent of "salmon poisoning" disease, Neorickettsia helminthoeca, was demonstrated in eggs of the trematode vector, Nanophyetus salmincola. Three dogs were given 100,000 and one dog 82,000 ground fluke eggs by intraperitoneal injection. The four animals developed "salmon poisoning" disease and died. One of these dogs...
Resource Type:: Dissertation

Creator:: Schlegel, Michael Wesley
Abstract:: Of 149 wild animals from two western Oregon river drainage areas and other localities in which "salmon poisoning" disease (SPD) is enzootic, including ten mammalian and two avian species, 79 harbored Nanophyetus salmincola, the SPD vector. The shorttail weasel, Mustela erminea; river otter, Lutra canadensis; spotted skunk, Spilogale putorius; Norway...
Resource Type:: Masters Thesis

Creator:: Panitz, Eric
Abstract:: Acid and alkaline phosphatase was localized histochemically in the intestinal epithelium and excretory duct respectively in fresh frozen sections of Fasciola hepatica. Polyphenol oxidase was localized in the vitellaria, vitelline ducts and egg-shells. The distribution and nature of esterases was examined histochemically. Acetyl-cholinesterase was observed in the tegument, neural ganglia,...
Resource Type:: Dissertation

Creator:: Law, Daniel Tin-Hung
Abstract:: Seven species of fresh water fishes belonging to three different families and two species of snails from Ritner Creek, Polk County, Oregon were surveyed for adult and larval trematodes. A total of seven species of trematodes representing four families was recovered from the intestine of the fishes. Of these, at...
Resource Type:: Dissertation

Creator:: Presidente, Paul J.
Abstract:: Twenty yearling sheep were allotted to four groups, each containing five sheep of approximately equal weight. On experimental days 0, 1, 2, 3, and 4, each sheep in each group was given the following inoculations by stomach tube: five sheep in group I (Fasciola hepatica-exposed controls) were given approximately 120...
Resource Type:: Dissertation

Creator:: Morrison, N. Donald
Abstract:: Sphaeromyxa maiyai sp. n. (Myxosporidea:Myxiidae) is described from the gall bladder of the Pacific tomcod, Microgadus proximus Girard, from Newport, Oregon. The plasmodial (=trophic, trophozoite) stage is discoid averaging between 1 and 2 cm. The spore averages 27.6 x 5. 6μm with pyriform polar capsules averaging 9. 3 x 3....
Resource Type:: Dissertation

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