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Dietary factors influencing the toxicity of tansy ragwort (Senecio jacobaea) in animals

Creator:: Swick, Robert Alphonso
Abstract:: Senecio jacobaea (tansy ragwort) is a poisonous plant responsible for livestock deaths in the Pacific Northwest. Horses and cattle are susceptible, while sheep are resistant to the toxic action of the pyrrolizidine alkaloids which the plant contains. Hepatic enzymes are responsible for the biotransformation of pyrrolizidine alkaloids into tissue damaging...
Resource Type:: Masters Thesis
Full Text:: excellent technical assistance. Dr. Phil Whanger, Dr. James Oldfield and Dr. James Harper for serving as

Factors influencing the utilization of alfalfa meal by rats and swine

Creator:: LeaMaster, Brad R.
Resource Type:: Masters Thesis
Full Text:: . I would also like to thank Dr. James Oldfield, Dr. Paul Kifer and Dr. George Arscott for serving as

Factors affecting the toxicity of Senecio jacobea to laboratory animals

Creator:: Pierson, Mary Louisa
Resource Type:: Masters Thesis
Full Text:: Cheeke for guidance and encouragement as my major professor. Dr. George Arscott, Dr. James Oldfield

The effects of various levels of dietary protein on high producing dairy cows in early lactation

Creator:: Pangborn, Marvin Clark
Abstract:: This project was designed to test the biological effects of three levels of dietary protein (12.7, 16.3 and 19.3% CP on a dry matter basis) on high producing Holstein-Friesian dairy cows. Forty five second lactation or older cows that showed the potential to produce over 31.75 kg (70 lbs) per...
Resource Type:: Masters Thesis
Full Text:: of my graduate com- mittee, Dr. James E. Oldfield, who has encouraged and inspired me throughout my

Glutathione peroxidase and selenium distribution in semen and reproductive tissues of farm animals

Creator:: Alabi, Nathaniel Sigismund
Abstract:: This study was conducted to investigate the distribution of glutathione peroxidase (GSH-Px) and selenium in semen of the boar, bull, ram and stallion, and in the reproductive tissues of the boar, bull and ram. The effect of repeated noncryoprotective freeze-thawing on GSH-Px activity was also studied. Both hydrogen peroxide (H₂0₂)...
Resource Type:: Masters Thesis
Full Text:: wish to express special thanks to Dr. James E. Oldfield, Dr. Frank Moore and Dr. Lee Eddleman for

Litter productivity at first and second parity by gilts mated at different weights at first or second estrus

Creator:: Tachasirinugune, Sommai
Abstract:: Purebred Yorkshire gilts with weights ranging from 70 to 105 kilograms were moved from a total-confinement rearing unit to a total-confinement brood stock unit where approximately ten gilts per pen were mixed to provide new penmates. Each gilt was thus exposed to an unfamiliar environment and to foreign penmates along...
Resource Type:: Masters Thesis
Full Text:: study; to my M.S. program committee (Dr. James E. Oldfield, the Head of the Department of Animal

Effects of selected dietary minerals and amino acids in zinc-deficient experimental animals

Creator:: O'Masta, George
Resource Type:: Masters Thesis
Full Text:: members of my graduate committee, Dr. Fred Hisaw, Dr. James E. Oldfield and Dr. Steven H. Sharrow

Utilization of alfalfa meal by non-ruminant animals

Creator:: Powley, John S.
Resource Type:: Masters Thesis
Full Text:: . Oldfield, Dr. George Arscott and Dr. Phil D. Whanger. A note of appreciation is extended to Lamont

The effect of precipitation variation and fertilization level on the nutritive value of wheat residue

Creator:: Carey, Anne C.
Abstract:: Five simulated precipitation patterns characteristic of the Columbia Basin and Plateau region and six fertilization rates were evaluated for their effect on percent crude protein, percent in vitro dry matter digestibility, fiber content, and yield of wheat aftermath on a commercial farm in north central Oregon. The higher moisture regimes...
Resource Type:: Masters Thesis
Full Text:: - bers, Drs. James E. Oldfield, Robert J. Raleigh, and Russel Crisman. Thank you also to Bev Raleigh for

Compatibility of sheep and deer grazing with lodgepole pine regeneration in the pumice region of central Oregon

Creator:: Rudeen, David Paul
Resource Type:: Masters Thesis
Full Text:: . Krueger, Dr. William W. Chilcote, Dr. James E. Oldfield and my Graduate School representative, Dr. David

ScholarsArchive@OSU

Dietary factors influencing the toxicity of tansy ragwort (Senecio jacobaea) in animals

Factors influencing the utilization of alfalfa meal by rats and swine

Factors affecting the toxicity of Senecio jacobea to laboratory animals

The effects of various levels of dietary protein on high producing dairy cows in early lactation

Glutathione peroxidase and selenium distribution in semen and reproductive tissues of farm animals

Litter productivity at first and second parity by gilts mated at different weights at first or second estrus

Effects of selected dietary minerals and amino acids in zinc-deficient experimental animals

Utilization of alfalfa meal by non-ruminant animals

The effect of precipitation variation and fertilization level on the nutritive value of wheat residue

Compatibility of sheep and deer grazing with lodgepole pine regeneration in the pumice region of central Oregon

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