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Filtering by: Creator Campbell, H. F. Remove constraint Creator: Campbell, H. F. Advisor Bogart, Ralph Remove constraint Advisor: Bogart, Ralph

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  • Morphology of epididymal spermatozoa from inbred and linecross bulls

    Creator:
    Turner, H. A.
    Abstract:
    Data were presented on epididymal spermatozoa from 29 inbred and linecross bulls raised at Oregon State University in connection with the Western Regional Beef Cattle Breeding Project, W-1. The inbred bulls came from four inbred lines. Three of these inbred lines were Herfords and the other line was Angus. The...
    Resource Type:
    Masters Thesis
    Full Text:
    . 20. Ely, Ray E. , H. A. Herman and C. F. Winchester. Studies of respiration rate of dairy bull

  • Electrocardiograms and related variables of dwarf beef cattle

    Creator:
    Pinjani, Moti, 1939-
    Abstract:
    Electrocardiograms from 12 compressed male (CM), 16 compressed female (CF), ten synthetic compressed female (SCF), nine brachycephalic female (BF), and 15 dolichocephalic female (DF) dwarfs from Davis, California, taken in the scapular lead S-II (prescapular position positive and right forelimb negative) were analyzed, The data on dwarf electrocardiograms were compared...
    Resource Type:
    Dissertation
    Full Text:
    char e of major Redacted for Privacy J f Department o t) Animal Science Redacted for Privacy Dean

  • Genetic polymorphism of sheep hemoglobin

    Creator:
    Templeton, Joe Wayne, 1941-
    Abstract:
    Five breeds of sheep (Columbia, Targhee, Rambouillet, Lincoln, and Suffolk) were found to possess two hemoglobin types (Hb. A and Hb. B) when their hemoglobins were examined by disc gel electrophoresis. The hemoglobin alleles proved to be co-dominant. Three of the breeds (Columbia, Targhee, and Rambouillet) were maintained at altitudes...
    Resource Type:
    Dissertation
    Full Text:
    approved: Redacted for Privacy F Ralph BoOrt Five breeds of sheep (Columbia, Targhee, Rambouillet, Lin

  • Some genetic and environmental factors influencing the weaning weights of southwestern range cattle

    Creator:
    Pahnish, O. F. (Otto Floyd), 1920-
    Resource Type:
    Dissertation
    Full Text:
    gaining ability whi le the older cows were not. !!!! Influence 2.f.. ~~ Weaning Weights The weaning

  • Actual and predicted response to selection on maternally influenced traits in the mouse

    Creator:
    Lind, Ronald Egnard
    Abstract:
    An experiment was conducted to determine if selection from standardized litters would be effective in separating lines of mice selected for increased and decreased litter weight at 14 days of age, and if response to selection on this maternally influenced trait could be accurately predicted. Data were collected on litter...
    Resource Type:
    Dissertation
    Full Text:
    Redacted for privacy (1 H d rDepartment t Animal Science Redacted for privacy Dean of Graduate School

  • Genetics of sheep transferrins as determined by disc electrophoresis

    Creator:
    Nix, Carroll Eugene
    Abstract:
    A total of 902 plasma samples from the Rambouillet, Targhee, Columbia, Lincoln, and Suffolk breeds of sheep were analyzed for transferrin type by disc electrophoresis. Six transferrin types, Tf[superscript A], Tf[superscript B], Tf[superscript C], Tf[superscript p], Tf[superscript E], and Tf[superscript P], were found in the Rambouillet, Targhee, and Columbia breeds...
    Resource Type:
    Dissertation
    Full Text:
    appreciated. Gratitude is expressed to committee members Dr. R. R. Becker, Dr. Paul Roberts, Dr. F. L. Hisaw

  • Effects of radiation on selection progress in mice

    Creator:
    Womack, James Ernest
    Abstract:
    The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
    Resource Type:
    Dissertation
    Full Text:
    MICE Abstract approved: Rai h Bogart The effects of x- irradiation on quantitative genetic traits

  • An analysis of the response to selection for high and low rate of gain in the mouse, Mus musculus

    Creator:
    Burrill, Melinda Jane
    Abstract:
    An experiment was conducted to examine the responses to selection for high and low rate of gain in the mouse under a system whereby inbreeding was maximized. Rate of gain was measured by an index designed to include gains in both the pre- and postweaning periods with the gains in...
    Resource Type:
    Dissertation
    Full Text:
    . Pearson, Dr. Arthur S. H. Wu and Dr. John Kiger, for their time and competent advice. To my parents, Mr

  • Genetic and physiological relationships of growth hormone and growth in goats

    Creator:
    Simms, Danny Dale
    Abstract:
    An F₁ population resulting from mating pygmy and normal goats (local commercial breeds) was crossed to give an F₂ population. Analysis of wither height and body weight indicated that the F₂ population was intermediate between the parental types (pygmy and normal) with little overlap of phenotypic values for body size...
    Resource Type:
    Dissertation
    Full Text:
    privacyAbstract approved: D14'. :Ralph Bogart An F 1 population resulting from mating pygmy and normal goats

  • Certain physiological and pharmacological effects of radiation on rabbits

    Creator:
    Wagelie, Edwin Gan
    Abstract:
    Data were taken, following irradiation exposure to 100r and 300r cumulative dose, on 89 rabbits of three breeds that vary greatly in body size. Hematological, intestinal motility, and ear vascularity examinations were performed. Least square estimates have been obtained and an analysis of variance has been conducted in order estimate...
    Resource Type:
    Dissertation
    Full Text:
    -iernatocrit. F{enatocrit estimations were made by placing four ml of whole oxalated blood into a 25 ml