Index Catalog // ScholarsArchive@OSU

Nutritional and management strategies of trace mineral supplementation for beef cattle

Creator:: Puerto Hernandez, Gracia Maria
Abstract:: Two studies evaluated the mineral status of supplemented beef cattle over two different methods of supplementation. The objective of study 1 was to evaluate the mineral status at weaning and subsequent post-weaning performance of calves supplemented prior to weaning, with limited-fed supplements fortified with trace minerals (Cu, Se, and Zn)...
Resource Type:: Masters Thesis

Prevalence of Deficiency and Relationship of Management Practices to Vitamin E and Selenium Status in Horses

Creator:: Pitel, Mariya O.
Abstract:: Deficiency of selenium (Se) or alpha-tocopherol (E) creates serious health issues in horses. This study evaluated owner supplementation practices and their efficacy at preventing deficiency in a large population of horses. In addition, common clinical signs of horses presenting to a referral institution who had Se and E testing performed...
Resource Type:: Masters Thesis

Possible Autocrine/Paracrine Action of Progesterone in the Ovine Corpus Luteum

Creator:: Smallman, Mary A.
Abstract:: The objective of the present research was to determine, by use of the progesterone receptor antagonist RU-486, whether progesterone by autocrine/paracrine action suppresses phosphatidylinositol hydrolysis, and thus, the production of prostaglandin F2a during the midluteal phase of the estrous cycle in ewes. Two experiments were performed. Experiment 1 consisted of...
Resource Type:: Masters Thesis

Increasing Vitamin D Levels to Improve Fertilization Rates in Cattle

Creator:: Peixoto de Souza, Vanessa
Abstract:: Recently, an interest in supplementation of vitamin D to improve aspects of health, especially in human fertility, has emerged. However, supplementation of Vitamin D above the minimum required levels to prevent deficiency has yet to be explored in cattle despite evidence for vitamin D receptors in reproductive tissues. The objective...
Resource Type:: Masters Thesis

Pasture Production and Lamb Growth from Dryland Hill Pastures in Western Oregon

Creator:: Gultekin, Yunus
Abstract:: Pasture legumes that persist under challenging agro-ecological conditions are crucial to ensure high lamb growth rates in dryland pastures. Pasture and lamb production from white clover (TF-Whc), birdsfoot trefoil (TF-Bft), balansa clover (TF-Bc) and subterranean clover (TF-Sc) planted with tall fescue either as binary mixtures or as a diverse combination...
Resource Type:: Masters Thesis

Reconstruction and Validation of the Integrated Diagnostic SystEm for DAiry Cow WeLfare (IDEAL) to Assess Real-time Animal Well-being on Confined and Grazing Dairy Farms

Creator:: Krueger, Angela K.
Abstract:: Animal welfare is an essential component of agricultural production and animal use in teaching and research. However, defining animal welfare is intrinsically difficult because of how history and societal values and perceptions have shaped the term. Animal welfare encompasses three main ideas: physical well-being, normal affective/emotional states, and the ability...
Resource Type:: Masters Thesis

Testing of vapor-liquid equilibrium data for thermodynamic consistency

Creator:: Frutiger, Richard Patrick
Abstract:: Redlich and Kister have developed two methods for evaluating thermodynamic consistency of vapor-liquid equilibrium data. These same authors also developed a power series for classifying systems according to the number of coefficients required to define the data. Stockett found it was difficult to classify systems by this method. Macan suggested...
Resource Type:: Masters Thesis
Full Text:: 77.00 .0207 .4564 -.4357 - .20 .8794 .8554 77.15 .0055 .5357 -.5302 4.94 .9262 .8975 77.40 -.0004

The Response of Ventenata dubia to Prescribed Fire and Ungulate Grazing on the Pacific Northwest Bunchgrass Prairie

Creator:: Ridder, Luke W.
Abstract:: Ventenata dubia L. (ventenata) is an introduced, winter annual grass that has recently been raising concerns across the Pacific Northwest Bunchgrass Prairie and the Palouse Prairie. It is well established now in pasturelands, croplands, and a variety of ecosystems including grasslands, sagebrush steppe, ponderosa pine forests and woodlands. Ventenata is...
Resource Type:: Masters Thesis

Creep studies on Pheasant, Narcissus and Chukar aluminum conductors

Creator:: Patton, John Dennis
Abstract:: This thesis is an engineering report on the creep behavior of power transmission line conductors. Laboratory creep test results are reported for Pheasant, Narcissus and Chukar conductors. The report follows a standard nomenclature and format suggested by the International Study Committee No. 6 of Conference Internationale des Grands Reseaux Electriques...
Resource Type:: Masters Thesis

Response of winter wheat (Triticum aestivum L. Em. Thell) to nitrogen and chloride fertilization in the presence of take-all root rot (Gaeumannomyces graminis var. tritici Walker)

Creator:: Maatougui, Mohamed El Hadi
Abstract:: Response from nitrogen and chloride fertilization was measured in field experiments on winter wheat (Triticum aestivum L. Em. Thell. var. 'Stephens' and 'Yamhill') grown in western Oregon in an environment with a range of susceptibility to take-all root rot (Gaumannomyces graminis var. tritici Walker). Cropping sequences and expected disease severity...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Nutritional and management strategies of trace mineral supplementation for beef cattle

Prevalence of Deficiency and Relationship of Management Practices to Vitamin E and Selenium Status in Horses

Possible Autocrine/Paracrine Action of Progesterone in the Ovine Corpus Luteum

Increasing Vitamin D Levels to Improve Fertilization Rates in Cattle

Pasture Production and Lamb Growth from Dryland Hill Pastures in Western Oregon

Reconstruction and Validation of the Integrated Diagnostic SystEm for DAiry Cow WeLfare (IDEAL) to Assess Real-time Animal Well-being on Confined and Grazing Dairy Farms

Testing of vapor-liquid equilibrium data for thermodynamic consistency

The Response of Ventenata dubia to Prescribed Fire and Ungulate Grazing on the Pacific Northwest Bunchgrass Prairie

Creep studies on Pheasant, Narcissus and Chukar aluminum conductors

Response of winter wheat (Triticum aestivum L. Em. Thell) to nitrogen and chloride fertilization in the presence of take-all root rot (Gaeumannomyces graminis var. tritici Walker)

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