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Metabolism of pyrrolizidine alkaloids by ruminal microbes

Creator:: Hovermale, Jeannette Talbot
Abstract:: The plant Senecio jacobaea (tansy ragwort) produces several macrocyclic pyrrolizidine alkaloids which cause irreversible liver cirrhosis. All of the pyrrolizidine alkaloids in Senecio jacobaea are macrocyclic diesters of the necine base retronecine, with the two most predominant being seneciphylline and jacobine. Unlike horses and cattle, sheep and goats are generally...
Resource Type:: Dissertation
Full Text:: Microbes by Jeannette Talbot Hovermale A THESIS submitted to Oregon State University in partial

An analysis of the effectiveness of a career education cluster curriculum as reflected by student growth in career maturity

Creator:: Hamby, Jeannette J. Johnson, 1933-
Abstract:: Purpose of the Study The purpose of the study was to determine whether there were significant differences in students' career maturity as a result of exposure to the concepts of career education. The study evaluated the relative effectiveness of a developing comprehensive career education project to help students attain increased...
Resource Type:: Dissertation
Full Text:: CURRICULUM AS REFLECTED BY STUDENT GROWTH IN CAREER MATURITY by Jeannette Hamby A THESIS submitted to

Dinitroaniline-herbicide resistance in goosegrass (Eleusine indica) : ecophysiological aspects

Creator:: Valverde, Bernal E.
Abstract:: Growth of individual goosegrass (Eleusine indica (L) Gaertn.) plants of three dinitroaniline-herbicide resistant (R) and three susceptible (S) biotypes from North Carolina, South Carolina, and Mississippi was analyzed in greenhouse experiments. Leaf area and biomass measurements, including root, shoot, above-ground, and total dry weights were similar among the biotypes studied....
Resource Type:: Dissertation
Full Text:: . Jeannette Emry was very helpful with some typing and a lot of printing. My gratitude to Larry Burrill and

A comparison of men and women vocational educators' present and expected levels of work satisfaction as related to selected work values

Creator:: Tremain, June Ellen
Resource Type:: Dissertation
Full Text:: A comparison of men and women vocational educators

Ruminant and microbial physio-chemical response to abrupt ration changes as influenced by chemical and/or biological means

Creator:: Patton, Westley R.
Abstract:: Three trials with wethers and four trials with steers were conducted to determine some of the effects of sodium bicarbonate, calcium hydroxide and/or transfer of ruminal contents on ruminant adjustment to abrupt changes to concentrate rations. Lambs fed a basal concentrate diet plus sodium bicarbonate had the highest average feed...
Resource Type:: Dissertation
Full Text:: . 14 Shelton, Huston and Calhoun (1969) fed lambs a basal ration containing 77% milo supplemented

Metabolism of toxic plant alkaloids in livestock : comparative studies on the hepatic metabolism of pyrrolizidine alkaloids in sheep and cattle and of ergot alkaloids in an endophyte-resistant mouse model

Creator:: Duringer, Jennifer Marie
Abstract:: The pyrrolizidine alkaloids (PAs) and ergot alkaloids are known natural toxicants found in livestock forage. These alkaloids contribute to large economic losses in livestock throughout the world. An understanding of the mechanisms of toxicity and development of better diagnostic tools for better management practices was investigated. Variability exists in the...
Resource Type:: Dissertation
Full Text:: Alkaloids in Sheep and Cattle and of Ergot Alkaloids in an Endophyte-Resistant Mouse Model. Abstract a A

Academic dishonesty : comparing American and foreign students' attitudes

Creator:: Sumrain, Ibrahim A.
Abstract:: To determine whether there were differences between foreign (Arab) and American student attitudes toward academic dishonesty in Oregon State University, a seventy-eight item questionnaire designed by Kirk, (1970) was adapted and administered to two hundred and eighty Arab and American graduate and undergraduate students. Three aspects of academic dishonesty were...
Resource Type:: Dissertation
Full Text:: students' attitudes AN ABSTRACT OF THE THESIS OF Ibrahim A. Sumrain for the degree of Doctor of

An evaluation of soil warming for increased crop production

Creator:: Rykbost, K. A.
Abstract:: In regions where soil temperatures limit plant growth, artificial soil warming may be an economically feasible practice. This hypothesis was evaluated in a soil warming experiment near Corvallis, Oregon. This experiment was prompted by the observation that multiple use of waste heat discharged in the condenser cooling water of thermal...
Resource Type:: Dissertation
Full Text:: evaluated in a soil warming experiment near Corvallis, Ore- gon. This experiment was prompted by the

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

Creator:: Alvarado, Renan A.
Resource Type:: Dissertation
Full Text:: synthesis when applied alone but not in presence of dicamba. A greater amount of a polar conjugate of

A physiological study of acidosis in ruminants

Creator:: Kezar, Wesley W.
Resource Type:: Dissertation
Full Text:: A physiological study of acidosis in ruminants AN

ScholarsArchive@OSU

Metabolism of pyrrolizidine alkaloids by ruminal microbes

An analysis of the effectiveness of a career education cluster curriculum as reflected by student growth in career maturity

Dinitroaniline-herbicide resistance in goosegrass (Eleusine indica) : ecophysiological aspects

A comparison of men and women vocational educators' present and expected levels of work satisfaction as related to selected work values

Ruminant and microbial physio-chemical response to abrupt ration changes as influenced by chemical and/or biological means

Metabolism of toxic plant alkaloids in livestock : comparative studies on the hepatic metabolism of pyrrolizidine alkaloids in sheep and cattle and of ergot alkaloids in an endophyte-resistant mouse model

Academic dishonesty : comparing American and foreign students' attitudes

An evaluation of soil warming for increased crop production

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

A physiological study of acidosis in ruminants

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