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Filtering by: Creator McConnell, H. P. Remove constraint Creator: McConnell, H. P. Advisor Bogart, Ralph Remove constraint Advisor: Bogart, Ralph Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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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:
    . and H. P. Ewalt. Semen studies in the bull. American Journal of Veterinary Research 2:419 -426. 1941

  • 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:
    .. MacDonald, and H. H. Stoevener who served as committee members for his pro- gram. A special thanks is

  • 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:
    male normal goats decreased significantly (P < .005) while serum GH levels in the male pygmy goats

  • 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:
    and Manning at Corvallis, Oregon. The average R-R, P--R, Q-T, and T-Q intervals, and the QRS

  • Effect of certain blood enzymes and cellular constituents on growth in different genetic groups of sheep

    Creator:
    Hutto, Daniel C.
    Abstract:
    In the present study, five breeds of ewes and their lambs were utilized. The breeds used were: Border Cheviot, Dorset Horn, Columbia, Suffolk and Willamette. In all, 31 ewes and 42 lambs were involved. The blood constituents which were determined for the ewes and lambs were: acid and alkaline phosphatase,...
    Resource Type:
    Dissertation
    Full Text:
    statistically (P <.01) by breed, sex and period, and ewe values were affected (P<.01) by breed, period and

  • Relationship of certain blood nitrogen constituents with growth in different genetic groups of sheep

    Creator:
    Yodseranee, Somchit
    Abstract:
    Market lamb production usually requires a short period of time. The success of production is therefore dependent upon the growth rate of the lambs which is influenced by milk yields of the ewes. Different growth potentials of animals result from a difference in their utilisation of food. Since metabolism affects...
    Resource Type:
    Masters Thesis
    Full Text:
    . Alexandria Journal of Agricultural Research 3:69-.9$. 1955. Hawk, P. B., B. L. Oser and W. H. Summerson

  • Response of scorbutic guinea pigs to ascorbic acid and adrenocorticotropic hormone (ACTH)

    Creator:
    Riker, Joseph Thaddeus III
    Abstract:
    Thirty-six female guinea pigs were placed on a scorbutogenic diet for 14 days and then divided into groups of four. Three groups received adrenocorticotropic hormone (ACTH) with each group given 10, 20, or 40 units. Three groups each received 50 mg of ascorbic acid and three groups received 50 mg...
    Resource Type:
    Masters Thesis
    Full Text:
    alone there is no difference between the tirne intervaLs, but there is a significant differenc. (p

  • 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:
    . In a mixture of the sera of the two homozygotes, p-globulin C and D, the electrophoretic pattern of

  • Genetic and physiological factors associated with gonadotropic and thyrotropic hormone content of sheep pituitaries

    Creator:
    Plotka, Edward Dennis
    Abstract:
    Data were taken from 47 animals consisting of five breeds: Border Cheviot, Columbia, Dorset Horn, Suffolk, and Willamette. Both sexes were represented in each breed, although in unequal numbers. The pituitaries were assayed for gonadotropic and thyrotropic hormone content by injecting a suspension of the macerated gland in saline into...
    Resource Type:
    Masters Thesis
    Full Text:
    the pituitaries between the breeds or sexes of the animals. Significant differences (P <.Ol) due to