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The KnowledgeBank at OSU (75.279 recursos)

Knowledge Bank contains collections of presentations, publications and reports related to Ohio State University.

Undergraduate Research Forum

Mostrando recursos 1 - 7 de 7

  1. Managing corn in narrow row spacing - does intensive management make sense?

    Ritchie, Ashley; Lindsey, Alex
    Corn (Zea mays) in the United States is one of the most common plants planted by producers. The objective of this research was to compare how 15 inch and 30 inch row spacing in corn impacts foliar disease development, ear leaf nitrogen (N) content, response to foliar fungicide and N application, and grain yield. The rationale for the research was to inform farmers about the advantages and disadvantages of altering corn row spacing. A field trial was conducted at two Ohio locations (OARDC Northwest and Western Research Stations in Hoytville and South Charleston respectively). Two corn hybrids were grown in...

  2. Green Flourescent Protein Expression in Bone Marrow-Derived Mesenchymal Stem Cells of Immunocompetent and Athymic Nude Rats

    Ielapi, Joseph
    Department of Animal Sciences

  3. Use of Landfill Leachate to Generate Electricity in Microbial Fuel Cells

    Frew, Bethany
    Microbial fuel cells, in which microorganisms catalyze the transfer of electrons released from the oxidation of organic compounds onto an electrode, are a promising biotechnological approach for harvesting energy in the form of electricity from certain wastes. The purpose of this study was to determine if landfill leachate is a productive source of substrate and microbes for generating electricity in microbial fuel cells. Research methods included filling the anodic chambers of multiple fuel cells with landfill leachate. The cathodic chambers were filled with a buffer solution of KH2PO4 and were separated from the anodic chambers by a proton exchange membrane...

  4. Effects of dietary supplementation of unsaturated fat, vitamin E, and sorbitol on the performance of dairy cows and the fatty acid concentrations in milk.

    Todd, Amanda M.
    Dietary supplementation of soybean oil will increase conjugated linoleic acid (CLA) in milk but not to the extent that results from supplementing diets with fish oil. Data are limited on CLA in milk from feeding a combination of soybean and fish oils to provide different sources of fatty acids. There is some evidence that increasing dietary concentration of vitamin E may affect milk CLA when feeding unsaturated fat. Even though sorbitol is being used in commercial feed, limited published data are available as to its effects on animal performance and milk composition. Eight lactating dairy cows (4 Holstein and 4...

  5. Adapting USEPA protocol for the detection and enumeration of Giardia and Cryptosporidium in an agricultural setting

    May, Cynthia L.
    An ecological water treatment system that utilizes a series of plants and water tanks is being tested at the Ohio State University Waterman Dairy as an alternate method for agriculture waste management. Giardia and Cryptosporidium are two genuera of parasites that can be found in most surface water supplies due to runoff from agricultural facilities, sewage treatment plants, or wildlife areas such as forests. As a result, the level of these two parasites in the water supply is a concern in regards to public health. The purpose of this study, initially, was to evaluate viability of the United States Environmental...

  6. Supplemental rumen-protected choline and methionine for lactating dairy cows

    Engel, Joanna
    The purpose of the experiment was to determine the effects of supplemental rumen-protected choline [Reashure® (REA)] and rumen protected methionine (Smartamine MTM). Analyses were performed to measure both milk and plasma choline, nonesterified fatty acids (NEFA) and plasma glucose and milk samples were sent out to be analyzed for milk fat, milk protein and milk urea nitrogen (MUN). 56 lactating dairy cows were fed one of 4 diets at parturition: 1) Control (duodenal flow of lysine:methionine (lys:met) 3.8, NRC 2001), 2) 0.26% rumen protected choline (RPC) (REA fed at 60 g/d to provide 15 g/d of choline; lys:met 3.8; REA-L),...

  7. PGF2a Inhibits VEGF Expression in the Corpus Luteum in the Mid but not Early Luteal Phase of the sheep Estrous Cycle

    Moritz, Stacey
    Vascular Endothelial Growth Factor (VEGF) is important for blood vessel development in a variety of tissues including an ovarian structure, the corpus luteum (CL). The CL is a transient endocrine gland that secretes progesterone, which prepares the uterus for pregnancy. In the absence of pregnancy, the corpus luteum regresses in response to endogenous prostaglandin (PG) F2?. Deficiencies in luteal function during early pregnancy may result in embryonic loss. Understanding of the mechanisms of luteal function could aid in the development of new methods to regulate fertility. Corpora lutea are susceptible to the luteolytic effects of PGF2???after day 4 of the...

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